chemical reaction Crossword Puzzles

chemistry 2025-04-24

chemistry crossword puzzle
Across
  1. when molecules stick together
  2. the appearance change in a substance
  3. the low energy compared to products.
  4. the same molecules
  5. the amount of matter
  6. the substance changing the speed in a reaction
  7. the result of a chemical reaction.
  8. the amount of space taken up by matter.
  9. matter that cant decompose
  10. a person,place,or thing
  11. the study of mattter
  12. the transfer in energy
  13. the interactions in matter
Down
  1. the capacity to work
  2. to release energy
  3. the change in a substance
  4. a measured substance
  5. the properties in a chemical after the reaction
  6. very small groups of balls in matter.
  7. the mix of chemicals
  8. the measure in energy.
  9. the building block of matter
  10. a material undergoing a chemical change

23 Clues: to release energy • the same molecules • the capacity to work • a measured substance • the mix of chemicals • the amount of matter • the study of mattter • the measure in energy. • the transfer in energy • a person,place,or thing • the change in a substance • matter that cant decompose • the interactions in matter • the building block of matter • when molecules stick together • ...

REACTIONS TYPE- Eithihaas 2024-05-02

REACTIONS TYPE- Eithihaas crossword puzzle
Across
  1. A reaction that releases heat to its surroundings.
  2. The gain of electrons by a substance during a reaction.
  3. The loss of electrons by a substance during a reaction.
  4. A reaction where an element replaces another element in a compound.
  5. A reaction where two soluble ionic compounds in a solution combine to form an insoluble product.
  6. A reaction where one substance loses electrons (oxidation) and another gains electrons (reduction).
  7. A reaction that absorbs heat from its surroundings.
Down
  1. A substance that undergoes change in a chemical reaction.
  2. A reaction where a single compound breaks down into two or more simpler substances.
  3. Displacement Reaction: A reaction where ions of two compounds exchange places to form two new compounds.
  4. An equation in which the number of atoms of each element is the same on both sides.
  5. A substance formed as a result of a chemical reaction.
  6. The development of unpleasant odors and flavors in fats and oils due to oxidation.
  7. The process of gradual destruction of materials, especially metals, due to chemical reactions with their environment.
  8. A chemical reaction where two or more substances combine to form a single product.

15 Clues: A reaction that releases heat to its surroundings. • A reaction that absorbs heat from its surroundings. • A substance formed as a result of a chemical reaction. • The gain of electrons by a substance during a reaction. • The loss of electrons by a substance during a reaction. • A substance that undergoes change in a chemical reaction. • ...

Chemical reactions 2023-11-14

Chemical reactions crossword puzzle
Across
  1. when a compound breaks down in to two different substances
  2. is when matter does not enter or leave
  3. is when energy released as the products form is greater than the energy required to break the bonds of the reactions
  4. the Law states that during a chemical reaction matter is not created or destroyed
  5. a change that alters the form or appearance of a substance
  6. the new substances that form
  7. substances that undergo the chemical changes
  8. when two or more elements combine to make a more complex substance
  9. is a change in matter that produces one or more substances
Down
  1. more energy is required to break bonds of the reactions than his released by the formation of the products
  2. increases the reaction rate by lowering the activation energy needed
  3. matter can enter from or escape to the surroundings
  4. mixing of two liquids may form
  5. when one element replaces another in a compound
  6. is the amount of a substance in a given volume
  7. a material used to describe the rate of a chemical reaction
  8. the minimum amount of energy to start a chemical
  9. biological catalysts
  10. is away to show a chemical reaction using symbols instead of words
  11. a number placed in front of a chemical formula in an equation

20 Clues: biological catalysts • the new substances that form • mixing of two liquids may form • is when matter does not enter or leave • substances that undergo the chemical changes • is the amount of a substance in a given volume • when one element replaces another in a compound • the minimum amount of energy to start a chemical • ...

TYPES OF CHEMICAL REACTION CHEMICAL CROSSFIRE 2025-04-28

TYPES OF CHEMICAL REACTION CHEMICAL CROSSFIRE crossword puzzle
Across
  1. Zinc and Lead are more reactive elements than _________.
  2. Copper gets covered with a _________ coating on exposure to the moist air .
  3. A reaction in which when two or more substances combine to form a single product.
  4. AB + C gives A + BC , which type of reaction is this .
  5. Reaction that are opposite to Combination reactions.
  6. Egg, chalk, marble, and this rock are made of calcium carbonate.
  7. Substance that speeds up a chemical reaction without being consumed.
  8. A reaction where there is gain of hydrogen and electrons .
  9. Respiration is an example of which reaction in which energy is produced.
  10. A substance “X” used in for whitewashing and to give a shiny finish to the walls .
Down
  1. A Reaction when two compound exchange ions .
  2. Substance that gains electrons and causes oxidation in a reaction.
  3. Reactions in which insoluble salts is produced .
  4. When Quick lime reacts with Water it forms.
  5. A side where reduction occurs in the electrolysis of water .
  6. When Lead nitrate reacts with Lead oxide in heat it gives out nitrogen dioxide and oxygen. What is the color of nitrogen dioxide fumes .
  7. Reaction used in the black and white photography .
  8. The reaction between acid and base to form salt and water .
  9. Reaction in which energy is absorbed.
  10. A reaction when Oxidation and Reduction reactions occur together it is known as ?
  11. Ferrous Sulphate crystals lose water when _________.

21 Clues: Reaction in which energy is absorbed. • When Quick lime reacts with Water it forms. • A Reaction when two compound exchange ions . • Reactions in which insoluble salts is produced . • Reaction used in the black and white photography . • Reaction that are opposite to Combination reactions. • Ferrous Sulphate crystals lose water when _________. • ...

Organic Reactions 2022-02-18

Organic Reactions crossword puzzle
Across
  1. Group atom or group of atoms that are able to break away from a molecule with a lone pair
  2. an ion with a positively-charged carbon atom.
  3. anions larger the atom, and the further the electrons from the nucleus, the more polarisable
  4. The starting material (other than enzyme or coenzyme) for an enzymatic chemical reaction.
  5. Organic reaction in which two substituents are removed from a molecule in either a one- or two-step mechanism
  6. stabilising interaction that results from the interaction of the electrons in a σ-bond (usually C-H or C-C) with an adjacent
  7. Substrate a carbon attached to THREE other carbons
  8. Replacement of one group by another
  9. Agent compounds that work by adding an alkyl group to the guanine base of the DNA molecule
Down
  1. Reaction a chemical reaction in which the solvent, such as water or alcohol
  2. substrate a carbon attached to only ONE other carbon
  3. Substrate a carbon attached to only TWO other carbons
  4. An atom or molecule that in chemical reaction seeks a positive centre
  5. Reaction chemical reactions in which an atom or group of atoms is added to a molecule
  6. Inversion inversion of a stereogenic center in a chiral molecule in a chemical reaction
  7. Relative spatial arrangement of atoms that form the structure of molecules
  8. Reaction an atom, molecule, or ion that has an unpaired valence electron
  9. to or involving a single molecule or single molecular species
  10. any process by which electrically neutral atoms or molecules are converted to electrically charged atoms or molecules (ions)
  11. substance that dissolves a solute, resulting in a solution

20 Clues: Replacement of one group by another • an ion with a positively-charged carbon atom. • Substrate a carbon attached to THREE other carbons • substrate a carbon attached to only ONE other carbon • Substrate a carbon attached to only TWO other carbons • substance that dissolves a solute, resulting in a solution • ...

Vocabulary Project 2018-10-17

Vocabulary Project crossword puzzle
Across
  1. Any property having to do with the chemical makeup of a substance.
  2. Accompanied by the release of heat.
  3. Changes to a substance that include color change, temperature change, odor change, formation of gas, and formation of a percipient.
  4. Changes affecting the appearance of a substance, but not the chemical composition.
  5. A substance made by mixing other substances together and that can be easily taken apart.
  6. A change that affects a substances chemical composition.
  7. to be deposited in a solid form from a solution.
  8. a substance produced during a natural or chemical process.
Down
  1. An equation of a chemical reaction in which the number of atoms of each element are the same.
  2. A substance that takes part in and undergoes change during a reaction.
  3. Any property that is measurable, whose value describes a state of a physical system.
  4. Mass in an isolated system is neither created nor destroyed.
  5. The degree of compactness of a substance.
  6. symbolic representation of a chemical reaction.
  7. A numerical at constant quality placed before an equation.
  8. A process that involves rearrangement of the molecular or ionic structure of a substance.
  9. Accompanied by requiring the absorption of heat.
  10. A type of lettering form that is written lower than the other things around it.
  11. One of more than a hundred substances that can't be changed or broken.
  12. A substance formed of two or more elements chemically united in fixed proportions.

20 Clues: Accompanied by the release of heat. • The degree of compactness of a substance. • symbolic representation of a chemical reaction. • Accompanied by requiring the absorption of heat. • to be deposited in a solid form from a solution. • A change that affects a substances chemical composition. • A numerical at constant quality placed before an equation. • ...

Chemical Reactions 2018-11-02

Chemical Reactions crossword puzzle
Across
  1. the loss of electrons from the atoms of a substance on a chemical reaction.
  2. reaction in which 2 ionic compounds in solution are combined, can produce a precipitate, water, or a gas.
  3. the gain of electrons by the atoms on a chemical reaction
  4. In a chemical reaction, the substance that reacts
  5. Chemical reaction that requires thermal energy in order to proceed.
  6. Number in a chemical equation that represents the number of units of each substance taking part in a chemical reaction.
Down
  1. A type of chemical reaction that occurs when a substance reacts with oxygen to produce energy in the form of heat and light.
  2. Chemical reaction in which 2 or more substances combine to form a different substance.
  3. Chemical reaction in which one substance breaks down into 2 or more substances.
  4. Chemical reaction in which energy is primarily given off in the form of thermal energy
  5. In a chemical reaction, the new substance or substances formed.

11 Clues: In a chemical reaction, the substance that reacts • the gain of electrons by the atoms on a chemical reaction • In a chemical reaction, the new substance or substances formed. • Chemical reaction that requires thermal energy in order to proceed. • the loss of electrons from the atoms of a substance on a chemical reaction. • ...

Ayush V 2024-05-01

Ayush V crossword puzzle
Across
  1. A reaction in which a substance combines with oxygen, releasing energy and often.
  2. A single compound breaks down into two or more simpler substances.
  3. A reaction where parts of two ionic compounds are exchanged.
  4. A substance that speeds up a chemical reaction without being consumed.
  5. The process by which metals are oxidized by substances in their environment.
  6. A reaction that involves the transfer of electrons between two species.
Down
  1. A reaction where one element replaces another in a compound.
  2. A reaction that involves the transfer of a proton from an acid to a base.
  3. A reaction that releases heat to the surroundings.
  4. A reaction where two or more substances combine to form a single product.
  5. A chemical change that typically occurs in fats and oils when they are exposed to air, leading to unpleasant smells and tastes
  6. A process where a substance loses electrons.
  7. A reaction that absorbs heat from the surroundings.
  8. A technique that uses a direct electric current to drive an otherwise non-spontaneous chemical reaction.
  9. A solid that forms from a solution during a chemical reaction.

15 Clues: A process where a substance loses electrons. • A reaction that releases heat to the surroundings. • A reaction that absorbs heat from the surroundings. • A reaction where one element replaces another in a compound. • A reaction where parts of two ionic compounds are exchanged. • A solid that forms from a solution during a chemical reaction. • ...

Reaction Rate - Petrochemicals 2024-05-20

Reaction Rate - Petrochemicals crossword puzzle
Across
  1. A type of aromatic hydrocarbon used in the production of plastics.
  2. Facility where crude oil is processed to produce various petroleum products.
  3. Process in which substances chemically transform into new substances.
  4. A colorless, aromatic hydrocarbon used in the production of various chemicals.
  5. Process of chemically bonding monomers together to form a polymer.
  6. Amount of product obtained from a chemical reaction or process.
  7. Process of changing one substance into another through chemical reactions.
  8. Substance that speeds up a chemical reaction without being consumed itself.
Down
  1. Common plastic polymer used in packaging and construction.
  2. Chemical compound derived from petroleum or natural gas.
  3. Study of the rates of chemical reactions.
  4. Measure of how well a reaction or process utilizes resources.
  5. Process of breaking down large hydrocarbon molecules into smaller ones.
  6. Act of making something as effective or functional as possible.
  7. Substance that participates in a chemical reaction.

15 Clues: Study of the rates of chemical reactions. • Substance that participates in a chemical reaction. • Chemical compound derived from petroleum or natural gas. • Common plastic polymer used in packaging and construction. • Measure of how well a reaction or process utilizes resources. • Act of making something as effective or functional as possible. • ...

Chemical Reactions crossword 2023-11-13

Chemical Reactions crossword crossword puzzle
Across
  1. a state in which forward and reverse reactions or processes proceed at equal rates
  2. A type of lettering form written lower than the things around it. In chemical formulas the number of atoms in a molecule is written in this manner
  3. Is a substance that is formed as the result of a chemical reaction.
  4. Mass in grams of one mole of a substance
  5. Gain of electrons
  6. A process in which one or more substances, the reactants, are converted to one or more different substances called the products
  7. A substance that slows down or prevents a particular chemical reaction or other process, or that reduces the activity of a particular reactant, catalyst, or enzyme.
  8. Are those which absorb energy from the surroundings and result in a net decrease in temperature
  9. A representation of a chemical reaction using symbols of the elements to indicate the amount of substance, usually in moles, of each reactant and product.
  10. The amount of a substance that contains 6.02 x 10^23 particles of that substance
Down
  1. The speed at which reactants are converted in products
  2. is a chemical equation with the same number of atoms of each element on both sides of the arrow
  3. is the number in front of the formula, that is related to the properties of the products. For example 2 H2O means there is two molecules of water
  4. A substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
  5. A substance that takes part in and undergoes change during a reaction
  6. for any system closed to all transfers of matter and energy, the mass of the system must remain constant over time, as system's mass cannot change, so quantity cannot be added or removed.
  7. A chemical reaction that releases energy in the form of light or heat
  8. Loss of Electrons
  9. A substance produced by a living organism that acts as a catalyst to bring about a specific biochemical reaction

19 Clues: Gain of electrons • Loss of Electrons • Mass in grams of one mole of a substance • The speed at which reactants are converted in products • Is a substance that is formed as the result of a chemical reaction. • A substance that takes part in and undergoes change during a reaction • A chemical reaction that releases energy in the form of light or heat • ...

Chemical Reactions crossword 2023-11-13

Chemical Reactions crossword crossword puzzle
Across
  1. a state in which forward and reverse reactions or processes proceed at equal rates
  2. A type of lettering form written lower than the things around it. In chemical formulas the number of atoms in a molecule is written in this manner
  3. Is a substance that is formed as the result of a chemical reaction.
  4. Mass in grams of one mole of a substance
  5. Gain of electrons
  6. A process in which one or more substances, the reactants, are converted to one or more different substances called the products
  7. A substance that slows down or prevents a particular chemical reaction or other process, or that reduces the activity of a particular reactant, catalyst, or enzyme.
  8. Are those which absorb energy from the surroundings and result in a net decrease in temperature
  9. A representation of a chemical reaction using symbols of the elements to indicate the amount of substance, usually in moles, of each reactant and product.
  10. The amount of a substance that contains 6.02 x 1023 particles of that substance
Down
  1. The speed at which reactants are converted in products
  2. is a chemical equation with the same number of atoms of each element on both sides of the arrow
  3. is the number in front of the formula, that is related to the properties of the products. For example 2 H2O means there is two molecules of water
  4. A substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
  5. A substance that takes part in and undergoes change during a reaction
  6. for any system closed to all transfers of matter and energy, the mass of the system must remain constant over time, as system's mass cannot change, so quantity cannot be added or removed.
  7. A chemical reaction that releases energy in the form of light or heat
  8. Loss of Electrons
  9. A substance produced by a living organism that acts as a catalyst to bring about a specific biochemical reaction

19 Clues: Gain of electrons • Loss of Electrons • Mass in grams of one mole of a substance • The speed at which reactants are converted in products • Is a substance that is formed as the result of a chemical reaction. • A substance that takes part in and undergoes change during a reaction • A chemical reaction that releases energy in the form of light or heat • ...

Chemistry Crossword 2020-06-05

Chemistry Crossword crossword puzzle
Across
  1. a reaction in which the atoms of one element replace the atoms of another element in a compound
  2. a substance that takes part in/undergoes change during a chemical reaction
  3. The mass in grams of a pure mole of any substance
  4. a solution containing one or more solutes is called a(n) ------- solution
  5. the ratio of the actual yield to the theoretical yield
  6. formed from a chemical reaction
  7. the study of quantitive relationshipsbetween the amounts of reactants and products
  8. a formula that a chemical reaction is written in which doesn't show conservation of mass
  9. The maximum of product that can be produced by a chemical reaction
Down
  1. the reactant which limits the extent of a reaction
  2. a reaction where oxygen combines with a substance and releases energy
  3. a compound breaking down into two more fragments is known as -------------
  4. the ratio between the numbers of moles of any two substances in a chemical equation
  5. 6.02 x 10^23
  6. The number of carbon atoms in twelve grams of pure carbon-12

15 Clues: 6.02 x 10^23 • formed from a chemical reaction • The mass in grams of a pure mole of any substance • the reactant which limits the extent of a reaction • the ratio of the actual yield to the theoretical yield • The number of carbon atoms in twelve grams of pure carbon-12 • The maximum of product that can be produced by a chemical reaction • ...

Chapter 12 Vocabulary Chemical Reactions & Equations 2024-03-22

Chapter 12 Vocabulary Chemical Reactions & Equations crossword puzzle
Across
  1. process in which atoms of one or more substances rearrange to form one or more new substances
  2. number placed in front of an element symbol or chemical formula in an equation
  3. states that the total mass of the reactants before a chemical reaction is the same as the total mass of the products after the chemical reaction
  4. minimum amount of energy needed to start a chemical reaction
  5. starting substance in a chemical reaction
  6. substance that slows down, or even stops, a chemical reaction
Down
  1. chemical reactions that absorb thermal energy enzyme catalyst that speeds up chemical reactions in living cells
  2. starting substance in a chemical reaction
  3. description of a reaction using element symbols and chemical formulas
  4. new substance produced by a chemical reaction
  5. chemical reactions that release thermal energy
  6. substance that increases the reaction rate by lowering the activation energy of a reaction

12 Clues: starting substance in a chemical reaction • starting substance in a chemical reaction • new substance produced by a chemical reaction • chemical reactions that release thermal energy • minimum amount of energy needed to start a chemical reaction • substance that slows down, or even stops, a chemical reaction • ...

KINETICS & HESS'S LAW CROSSWORD 2022-02-04

KINETICS & HESS'S LAW CROSSWORD crossword puzzle
Across
  1. amount of heat released or absorbed by a system during a process at constant pressure
  2. measure of how hot or cold something is
  3. forming reactants from products
  4. study of reaction rates
  5. chemical substance produced during the conversion of some reactant to a product
  6. changes the rate of a chemical reaction without being consumed
  7. shows energy changes vs the progress of a reaction
Down
  1. change in concentration of a reactant or product with time
  2. forming products from reactants
  3. heat energy is absorbed on the product side of the reaction
  4. heat energy is released on the product side of the reaction
  5. overall enthalpy equal to sum of the enthalpy changes
  6. factor that affects reaction rate
  7. minimum amount of energy required to start achemical reaction
  8. slows down or prevent a chemical reaction
  9. stirring

16 Clues: stirring • study of reaction rates • forming reactants from products • forming products from reactants • factor that affects reaction rate • measure of how hot or cold something is • slows down or prevent a chemical reaction • shows energy changes vs the progress of a reaction • overall enthalpy equal to sum of the enthalpy changes • ...

Types Of Chemical Reactions 2024-04-30

Types Of Chemical Reactions crossword puzzle
Across
  1. Sunlight plays a crucial role in triggering this type of chemical reaction, often seen in photosynthesis.
  2. Breaking down complex molecules like carbohydrates into simpler ones involves this type of reaction.
  3. Rusting of iron is a common example of this type of chemical reaction.
  4. In this type of reaction, a more reactive metal displaces a less reactive metal from a compound.
  5. Enzymes in biological systems often facilitate reactions through this process.
  6. Yeast utilizes this process to produce ethanol in the absence of oxygen.
  7. Rotting of organic matter is an example of this type of chemical reaction.
  8. Adding an acid to a base results in this type of reaction, often used to create water.
Down
  1. This process is essential in cement formation and some chemical weathering reactions.
  2. This type of reaction is essential in the formation of plastics and synthetic fibers.
  3. This type of reaction is responsible for the burning of fuels.
  4. The opposite of decomposition, this reaction builds larger molecules from smaller ones.
  5. The opposite of oxidation, it involves the removal of oxygen or addition of hydrogen.
  6. The pH scale measures the strength of substances involved in this type of chemical reaction.
  7. When two solutions are mixed and a solid substance falls out of solution, this reaction occurs.

15 Clues: This type of reaction is responsible for the burning of fuels. • Rusting of iron is a common example of this type of chemical reaction. • Yeast utilizes this process to produce ethanol in the absence of oxygen. • Rotting of organic matter is an example of this type of chemical reaction. • ...

Chemistry Crossword Fun Fun Power Hour (Wacky!!) 2021-07-25

Chemistry Crossword Fun Fun Power Hour (Wacky!!) crossword puzzle
Across
  1. ions that do not react in a chemical equation
  2. Low pH, donates protons
  3. indicates the acid will have the prefix hydro- and suffix -ic
  4. placed on the left of a chemical equation; the substances that react with one another to produce new substances
  5. a neutral substance made up of balanced positive and negative ions
  6. created in neutralization reaction; can help lower the acidity of a substance
  7. placed on the right of a chemical equation; the results of a chemical reaction, and the sum total of the reactants
  8. High pH, accepts protons
Down
  1. H3O+; denotes basicity
  2. indicates the acid will have only the -ic suffix
  3. a positively charged ion
  4. when a base and acid react to form a salt and water
  5. OH-; denotes acidity
  6. the written form of a chemical reaction; demonstrates how reactants combine to form products.
  7. pH of 7
  8. A substance with another substance finely dissolved in it; an example would be saltwater
  9. a negatively charged ion
  10. indicates the acid will have the unique -ous suffix
  11. balancing the states of acidity and basicity; the constant state of chemical processes being "centered"
  12. Scale on which acidity or basicity is measured; measures concentration of H+ and OH- ions

20 Clues: pH of 7 • OH-; denotes acidity • H3O+; denotes basicity • Low pH, donates protons • a positively charged ion • a negatively charged ion • High pH, accepts protons • ions that do not react in a chemical equation • indicates the acid will have only the -ic suffix • when a base and acid react to form a salt and water • indicates the acid will have the unique -ous suffix • ...

Stoichiometry 2024-04-01

Stoichiometry crossword puzzle
Across
  1. ratio: The ratio of the number of moles of one substance to the number of moles of another substance in a balanced chemical equation.
  2. reactant: The reactant that is not completely consumed in a chemical reaction, remaining after the limiting reactant is used up.
  3. mass: The mass of one mole of a substance, usually expressed in grams per mole (g/mol).
  4. equation: A symbolic representation of a chemical reaction using chemical formulas and symbols.
  5. Substances formed as a result of a chemical reaction.
  6. A number written slightly below and to the right of an element's symbol in a chemical formula, indicating the number of atoms of that element in a molecule.
  7. number: The number of atoms, molecules, or formula units in one mole of a substance, approximately
Down
  1. equation: An equation representing a chemical reaction with an equal number of atoms of each element on both sides.
  2. A unit used to measure the amount of substance, equal to Avogadro's number of atoms, molecules, or formula units.
  3. The quantitative relationship between reactants and products in a chemical reaction.
  4. reaction: A process in which one or more substances are converted into different substances.
  5. Substances that undergo a chemical change in a reaction.
  6. reactant: The reactant that is completely consumed in a chemical reaction, limiting the amount of product that can be formed.
  7. ratio: The ratio of the masses of one substance to the mass of another substance in a chemical reaction.
  8. Numbers in a balanced chemical equation representing the relative amounts of reactants and products.

15 Clues: Substances formed as a result of a chemical reaction. • Substances that undergo a chemical change in a reaction. • The quantitative relationship between reactants and products in a chemical reaction. • mass: The mass of one mole of a substance, usually expressed in grams per mole (g/mol). • ...

Chemistry Crossword 2014-11-07

Chemistry Crossword crossword puzzle
Across
  1. Without it you pretty much die
  2. New substance produced in a chemical reaction
  3. Takes place when two or more substances react to create a new one
  4. John Dalton's model
  5. Most explosive element on the periodic table
  6. When a metal and non-metal combine
  7. Positive particle in the nucleus of an atom
  8. The smallest part of an element
  9. Releases energy
  10. Change in appearance or state
  11. Negative particle that orbits the nucleus in an atom
  12. Slow chemical change that occurs when oxygen reacts with a metal
  13. This element is found in many swimming pools
  14. Absorbs energy
Down
  1. _________+ Oxygen= H20
  2. It is present in bananas
  3. Chemical reaction that takes place in cells
  4. First scientist to organize the elements into a chart
  5. Element that has metallic and non-metallic properties
  6. table in which the elements are organized
  7. Chemical reaction that occurs when oxygen reacts with a substance
  8. Substance that helps a chemical reaction proceed more quickly
  9. Aurum is another name for this element
  10. Most reactive non-metals
  11. Neutral particle in the nucleus of an atom

25 Clues: Absorbs energy • Releases energy • John Dalton's model • _________+ Oxygen= H20 • It is present in bananas • Most reactive non-metals • Change in appearance or state • Without it you pretty much die • The smallest part of an element • When a metal and non-metal combine • Aurum is another name for this element • table in which the elements are organized • ...

Unit 2 2022-03-28

Unit 2 crossword puzzle
Across
  1. A Structure inside a cell that performs a specific function
  2. Water fearing
  3. This refers to the cell membrane allowing only some things to pass through
  4. The result of a chemical reaction
  5. Similar cells working together
  6. Passive transport from an area of high concentration to low concentration
  7. A protein that speeds up a chemical reaction. Sometimes called a catalyst
  8. The diffusion of water
  9. Movement across the cell membrane that requires energy. Going from low concentration to high concentration
  10. Any living thing
  11. Two or more atoms bonded together
  12. The basic unit of life
Down
  1. The location on an enzyme where a substrate binds
  2. Organs that work together to perform a function
  3. The energy needed to start a chemical reaction
  4. Movement across the cell membrane that does not require energy
  5. A chemical compound that goes through a chemical reaction after binding to an enzyme
  6. Water loving
  7. When an enzyme has become altered due to extreme change in temp. or pH
  8. The smallest unit of all matter
  9. Forms a bilayer that makes up the cell membrane
  10. Similar tissues working together

22 Clues: Water loving • Water fearing • Any living thing • The diffusion of water • The basic unit of life • Similar cells working together • The smallest unit of all matter • Similar tissues working together • The result of a chemical reaction • Two or more atoms bonded together • The energy needed to start a chemical reaction • Organs that work together to perform a function • ...

Properties & Reactions X Word 2018-11-07

Properties & Reactions X Word crossword puzzle
Across
  1. mass divided by volume
  2. a change that converts an existing substance into a new substance
  3. the ability of a substance to be dissolved in a liquid
  4. a change in matter that does not affect its chemical composition
  5. The formation of a ___ can indicate a chemical reaction
  6. electrical and thermal ___ are physical properties
  7. process that absorbs energy
Down
  1. the sudden release of smoke or ___ can indicate a chemical reaction
  2. a chemical reaction in which oxygen combines with another substance; for example, when metal rusts
  3. the ability of a material to be stretched into a wire without breaking
  4. process that releases energy
  5. the ability of a material to be beaten into a thin sheet or to be shaped without breaking
  6. a sudden increase or decrease in ___ can indicate a chemical reaction
  7. a change in ___ can indicate a chemical reaction

14 Clues: mass divided by volume • process that absorbs energy • process that releases energy • a change in ___ can indicate a chemical reaction • electrical and thermal ___ are physical properties • the ability of a substance to be dissolved in a liquid • The formation of a ___ can indicate a chemical reaction • a change in matter that does not affect its chemical composition • ...

Chemical Reactions Quiz Review 2026-04-29

Chemical Reactions Quiz Review crossword puzzle
Across
  1. Always on the left side of a chemical reaction
  2. Name the Compound: NaNO3
  3. Represented by the symbol (s) in a chemical equation
  4. Always on the right side of a chemical reaction
  5. Write the formula for the name: Iron (III) Oxide
  6. Write the formula for the name: Nickel (II) sulfate
  7. Name the Compound: Na2CrO4
  8. Solid product formed from mixing two liquid reactants
  9. Reaction where two elements swap in two different compounds
  10. Balance the following equation: Mg + AgNO3 --> Ag + Mg(NO3)2. Write the coefficients in the correct order for answer.
  11. Represented by an arrow going both ways in a chemical equation
  12. Reaction where two smaller substances make one big product
  13. Number that is changed in a reaction to balance it
  14. Balance the following equation: Li3PO4 + BaCl2 --> Ba3(PO4)2 + LiCl. Write the coefficients in the correct order for answer.
Down
  1. Means the substance has been dissolved in water (aq)
  2. Name the Compound: P2O5
  3. Formula for oxygen in a chemical equation
  4. Reaction where one reactant breaks down into smaller substances
  5. "Nickname" for the diatomic molecules (H2,F2,Cl2,Br2,I2,O2,N2)
  6. Reaction where an element replaces another in a compound
  7. Name the compound: KBr
  8. Temperature change that absorbs energy
  9. Name the Compound: NaCl
  10. Temperature change that releases energy
  11. Write the formula for the name: Lead (II) Chloride
  12. The small number that represents the number of atoms in a formula (MgCl2)
  13. Reaction that always produces carbon dioxide and water
  14. Balance the following equation: ZnO + H2O --> Zn(OH)2. Write the coefficients in the correct order for answer.
  15. Write the formula for the name: Iron (III) Chloride

29 Clues: Name the compound: KBr • Name the Compound: P2O5 • Name the Compound: NaCl • Name the Compound: NaNO3 • Name the Compound: Na2CrO4 • Temperature change that absorbs energy • Temperature change that releases energy • Formula for oxygen in a chemical equation • Always on the left side of a chemical reaction • Always on the right side of a chemical reaction • ...

Chapter 2 crossword 2023-09-21

Chapter 2 crossword crossword puzzle
Across
  1. starting materials in a chemical reaction
  2. basic unit of an element
  3. the force that holds atoms together in a chemical compound
  4. Chemical changes occur when a substance combines with another to form a new substance
  5. a process that occurs when molecules move from an area of high concentration to an area of low concentration
  6. a process in which a solute breaks up from a larger crystal of molecules into much smaller groups or individual molecules by coming into contact
  7. A base is a substance that reacts with an acid in an acid-base reaction
  8. a broad group of organic compounds which include fats
  9. In science, a product is a substance that is formed as the result of a chemical reaction
  10. a thermodynamic quantity representing the unavailability of a system's thermal energy
  11. Physical changes are changes affecting the form of a chemical substance
  12. measure of hotness or coldness
  13. any of a large group of organic compounds that includes sugars, starch, and cellulose, containing hydrogen and oxygen
  14. proteins that act as biological catalysts by accelerating chemical reactions
  15. a group of two or more atoms that are held together by chemical bonds
  16. a simple organic compound containing both a carboxyl
Down
  1. A chemical substance composed of many identical molecules
  2. sticking or attaching to something
  3. Delays, slows or prevents a chemical reaction
  4. cohesion is the act or state of sticking together1234
  5. An acid is a chemical species that donates protons or hydrogen ions and/or accepts electrons
  6. a substance that increases the rate of a chemical reaction
  7. a pure substance that cannot be broken down
  8. a sweet crystalline substance obtained from various plants
  9. energy is the ability to do work or heat an object
  10. such as the pole of a magnet or one of the electrodes of an electrolytic cell
  11. substances that contain carbon
  12. substance that takes up space and has mass
  13. basic building block of nucleic acids

29 Clues: basic unit of an element • substances that contain carbon • measure of hotness or coldness • sticking or attaching to something • basic building block of nucleic acids • starting materials in a chemical reaction • substance that takes up space and has mass • a pure substance that cannot be broken down • Delays, slows or prevents a chemical reaction • ...

Enzymes and Biochemical Reactions 2023-11-14

Enzymes and Biochemical Reactions crossword puzzle
Across
  1. Releases energy in the form of light or heat
  2. An example of an exothermic reaction (2 words)
  3. The breaking and forming of bonds between different substances (2 words)
  4. The amount of energy needed to make a chemical reaction start (2 words)
  5. Light energy is stored as chemical energy in __
  6. Substances that are changed during a chemical reaction
Down
  1. Controls metabolic reactions
  2. An example of an endothermic reaction
  3. All the chemical reactions within each cell of an organism
  4. Break down larger molecules into smaller compounds
  5. Substances that are made by a chemical reaction
  6. Build larger molecules from smaller ones
  7. When enzymes speed up reactions
  8. Absorbs energy in the form of light or heat

14 Clues: Controls metabolic reactions • When enzymes speed up reactions • An example of an endothermic reaction • Build larger molecules from smaller ones • Absorbs energy in the form of light or heat • Releases energy in the form of light or heat • An example of an exothermic reaction (2 words) • Substances that are made by a chemical reaction • ...

Chemistry Crossword EDITED VER 2017-11-14

Chemistry Crossword EDITED VER crossword puzzle
Across
  1. number that represents the number of atoms in an element.
  2. Substances that helps speed up a reaction
  3. anything that has mass and occupies space
  4. Ability to conduct electricity/heat energy
  5. Cloudy mixture that can be separated
  6. Material made of 2 or more elements
  7. Compound made of Metal+Non-Metal
  8. Mass in given volume
  9. Starting materials of a reaction
  10. Slow chemical change when oxygen reacts with a metal
  11. Compound made of Non-Metal+Non-Metal
  12. To chemically absorb heat
  13. When oxygen reacts w/ a substance to form a new substance.
Down
  1. Chemical change in your body that takes in Oxygen, and gives out Carbon Dioxide.
  2. ability to pound into sheets
  3. Organic substances that helps speed up a reaction
  4. Ability to dissolve.
  5. Compounds/Materials made from chemical reaction
  6. Chemical change of a solid to gas
  7. Chemical change of a gas to solid
  8. Ability to thin into wire.
  9. To chemically release heat
  10. Any pure substance on the Periodic Table of Elements
  11. Letters/Numbers to indicate what elements are in a compound.
  12. Shine of substance.

25 Clues: Shine of substance. • Ability to dissolve. • Mass in given volume • To chemically absorb heat • Ability to thin into wire. • To chemically release heat • ability to pound into sheets • Compound made of Metal+Non-Metal • Starting materials of a reaction • Chemical change of a solid to gas • Chemical change of a gas to solid • Material made of 2 or more elements • ...

vocab crossword 2025-09-19

vocab crossword crossword puzzle
Across
  1. - molecule composed of many monomers
  2. - attraction between molecules of the same substance
  3. - reactant of an enzyme catalyzed reaction
  4. - compound that prevents sharp sudden changes in PH
  5. - elements or compounds that enter into a chemical reaction to begin
  6. - protein catalyst that speeds up the rate of specific biological reactions
  7. - compound that forms hydrogen ions in a solution with a PH lower then 7
  8. - pure substance that consists entirely of 1 type of atom
  9. energy - energy input that is needed for a reaction to begin
Down
  1. - force of attraction between different kinds of molecules
  2. - elements or compounds produced by chemical reactions
  3. acid - macromolecule's containing hydrogen, oxygen, nitrogen, carbon and phosphorus
  4. - a small chemical unit that makes up polymer
  5. - substance that speeds up the rate of a chemical reaction
  6. - type of mixture where all of the compoints are evenly distributed
  7. - basic unit of a chemical element
  8. - mixture of water and a non-dissolved material
  9. - atom that has a positive or negative charge
  10. acid - compound with an amino acid group on 1 end
  11. - substance that is dissolved in a solution

20 Clues: - basic unit of a chemical element • - molecule composed of many monomers • - reactant of an enzyme catalyzed reaction • - substance that is dissolved in a solution • - a small chemical unit that makes up polymer • - atom that has a positive or negative charge • - mixture of water and a non-dissolved material • acid - compound with an amino acid group on 1 end • ...

Pearson 8 Chapter 6 Physical and Chemical Change 2016-03-03

Pearson 8 Chapter 6 Physical and Chemical Change crossword puzzle
Across
  1. Group of atoms joined together
  2. equation Chemical equation using symbols for substances
  3. Decrease in size as particles move closer together
  4. Heat is absorbed/ taken in
  5. Mixture where each particle of solute is surrounded by particles of solution
  6. Increase in size as particles move further away
  7. Change from solid to gas
  8. reaction chemical change that needs a constant supply of energy to continue.
  9. Change from solid to liquid
  10. Heat is given out
  11. Starting chemicals
Down
  1. New substances made in a chemical reaction
  2. reaction Re-arrangement of atoms to form new substances
  3. reaction of a metal with oxygen to form a metal oxide
  4. Change in state to solid
  5. Production of a solid on the addition of two solutions
  6. Change from gas to liquid
  7. Change from gas to solid
  8. equation Chemical equation using names of substances
  9. Change from liquid to gas at the top of the liquid only
  10. Change where all of the liquid is changing to gas
  11. change A change where no new substance is made
  12. Smallest building block that makes up all substances

23 Clues: Heat is given out • Starting chemicals • Change in state to solid • Change from solid to gas • Change from gas to liquid • Change from gas to solid • Heat is absorbed/ taken in • Change from solid to liquid • Group of atoms joined together • New substances made in a chemical reaction • change A change where no new substance is made • ...

Chemical Reactions 2026-03-03

Chemical Reactions crossword puzzle
Across
  1. The chemical reaction that transfers energy to the environment is an _____ reaction
  2. Modern chemistry grew out of ancient experimental work called ____
  3. Burning is a reaction called ___
  4. The new subtances formed after a chemical reaction are ___
  5. _______ of mass
Down
  1. The calculation of reactants and products in chemical reactions is ____
  2. The insoluble solid that emerges from a chemical solution is ___
  3. The reactant that is present in the least amount of a reaction is called the ____ factor
  4. The starting substances in a chemical reaction are _
  5. A chemical ___
  6. ______ Compounds
  7. A characteristic of a substance that determines how it interacts with other substances is the chemical ___

12 Clues: A chemical ___ • _______ of mass • ______ Compounds • Burning is a reaction called ___ • The starting substances in a chemical reaction are _ • The new subtances formed after a chemical reaction are ___ • The insoluble solid that emerges from a chemical solution is ___ • Modern chemistry grew out of ancient experimental work called ____ • ...

225 2025-11-14

225 crossword puzzle
Across
  1. SI unit of energy
  2. System that exchanges energy, not matter
  3. Making a solution less concentrated
  4. System that exchanges matter and energy
  5. Measure of disorder
  6. Medium that dissolves solute
  7. Everything outside the system
  8. Total heat content of a system
  9. Energy to raise 1g by 1°C
  10. Point where no more solute dissolves
  11. Unit of heat energy
  12. Slows down a chemical reaction
Down
  1. Ability to dissolve in a solvent
  2. Absorbs heat from surroundings
  3. Releases heat to surroundings
  4. Speeds reaction without being used up
  5. Study of reaction rates
  6. Dissolved in water
  7. Speed of a chemical reaction
  8. Solid formed in a solution reaction
  9. Amount of solute in solution
  10. No exchange of matter or energy
  11. Model explaining reaction rates
  12. Portion of universe under study
  13. Minimum energy to start reaction

25 Clues: SI unit of energy • Dissolved in water • Measure of disorder • Unit of heat energy • Study of reaction rates • Energy to raise 1g by 1°C • Speed of a chemical reaction • Medium that dissolves solute • Amount of solute in solution • Releases heat to surroundings • Everything outside the system • Absorbs heat from surroundings • Total heat content of a system • ...

Stoichiometry 2025-01-25

Stoichiometry crossword puzzle
Across
  1. It is defined as the amount of a chemical substance that contains as many elementary entities (e.g., atoms, molecules, ions, electrons, or photons
  2. The law of conservation of mass, which states that during a chemical reaction, the total mass of the products must be equal to the total mass of the reactants.
  3. A chemical equation is the symbolic representation of a chemical reaction in the form of symbols and chemical formulas
  4. a unit of mass within the metric system,
  5. the relationship between the relative quantities of substances taking part in a reaction or forming a compound, typically a ratio of whole integers.
  6. A balanced equation is an equation for a chemical reaction in which the number of atoms for each element in the reaction and the total charge is the same.
  7. a basic representation of a chemical reaction, showing only the chemical formulas of the reactants and products without indicating the relative amounts involved, meaning it is an unbalanced equation where the number of atoms on each side is not equal
Down
  1. the comparison of the number of moles of one substance to the number of moles of another substance in a balanced chemical equation
  2. the mass in grams of one mole of a substance
  3. a method used to convert a quantity from one unit of measurement to another by utilizing conversion factors
  4. a whole number written in front of a chemical formula in an equation, indicating how many molecules or moles of that substance are involved in a chemical reaction
  5. a substance that takes part in and undergoes change during a reaction.
  6. A chemical reaction is a process in which one or more substances, also called reactants, are converted to one or more different substances, known as products.
  7. A product is a substance that is present at the end of a chemical reaction as a result of reactants undergoing change

14 Clues: a unit of mass within the metric system, • the mass in grams of one mole of a substance • a substance that takes part in and undergoes change during a reaction. • a method used to convert a quantity from one unit of measurement to another by utilizing conversion factors • ...

Chemical Kinetics 2024-06-07

Chemical Kinetics crossword puzzle
Across
  1. A reaction intermediate is a compound _______ in one step and consumed in another
  2. A very exothermic reaction may be slow because it has a ______ activation energy
  3. Rate of reaction is expressed as ___________ over time
  4. When __________ increases, particles move faster and with more energy ∴ speeding up the reaction rate
  5. In a potential energy diagram, activation energy is represented by a _____
  6. The minimum potential energy that particles have to collide with before they react
  7. The rate of the reaction can be affected differently by each _______
  8. The ________ mechanism determines the overall rate of the reaction
  9. When the concentration of a reactant is doubled, and it is a 2nd order reaction, the reaction rate will _____
  10. The slow step mechanism has the _____ order
  11. Decreasing surface area will _______ the rate of the reaction
  12. If particles do not collide in the correct __________ the reaction will not occur
  13. The ________________ is a high energy state between reactants and products
  14. A heterogeneous catalyst is where the catalyst and reactants are in _______ states
  15. In terms of molecularity, a mechanism with 3 reacting molecules is called __________
Down
  1. Activation energy can be determined by the______
  2. Step-by-step sequence of elementary reactions by which an overall chemical change occurs
  3. A reaction involving two reactant molecules is ________
  4. Reactions often don’t occur in the __________ indicated by the chemical equation
  5. The time required for half of a sample to decay
  6. In the equation r=K[X]ˢ[Y]ⁿ, k represents a ________
  7. The difference in potential energy between products and reactants is _____
  8. A theory that states that for a reaction to occur, reactant particles must collide with sufficient energy and proper orientation
  9. On a maxwell-boltzmann distribution graph, adding a catalyst makes the activation energy move _______
  10. A negative sign indicates the rate of _________ of a reactant
  11. Adding a _____ to a reaction ∴ speeds up the reaction rate
  12. Chemical kinetics is used to determine ways to control the______ of a reaction
  13. A reaction whose rate is independent of the concentration of the reactant(s)
  14. the sum of the exponents in the rate law equation
  15. 1st order reactions occur in both chemical and _____ changes

30 Clues: The slow step mechanism has the _____ order • The time required for half of a sample to decay • Activation energy can be determined by the______ • the sum of the exponents in the rate law equation • In the equation r=K[X]ˢ[Y]ⁿ, k represents a ________ • Rate of reaction is expressed as ___________ over time • A reaction involving two reactant molecules is ________ • ...

Chemical Reactions 2020-10-28

Chemical Reactions crossword puzzle
Across
  1. Chemical equation that follows the law of conservation of mass
  2. A reaction where two compounds react to form to new compounds
  3. A reaction where an element replaces another element in a compound creating a new element and a new compound
  4. A reaction with oxygen that produces energy.
  5. A reaction where two elements or compounds become one new compound
  6. A chemical that is created as a chemical reaction occurs
  7. A chemical that is at the start of the reaction, but is used up as the reaction proceeds
  8. List of elements that ranks elements based on reactivity
Down
  1. Type of equation that show all of the elements or molecules that are involved in a reaction.
  2. A number placed in front of a molecule or element to balance the equation
  3. A reaction where one complex compound breaks down into two or more elements or simpler compounds
  4. Chemical that is not used in a reaction, but speeds up the chemical reaction

12 Clues: A reaction with oxygen that produces energy. • A chemical that is created as a chemical reaction occurs • List of elements that ranks elements based on reactivity • A reaction where two compounds react to form to new compounds • Chemical equation that follows the law of conservation of mass • A reaction where two elements or compounds become one new compound • ...

Stoichiometry 2022-03-11

Stoichiometry crossword puzzle
Across
  1. yield is the percent ratio of actual yield divided by theoretical yield.
  2. chemical equation in which the number and tyoe of atoms and the electric charge is the same on both the reactant and product sides of the equation.
  3. reactant left over in a reaction because it is present in a great amount than needed to react with the limiting reactant
  4. the quantitative relationship in chemical reactions
  5. substance formed as result of a chemical reaction(located on the RIGHT SIDE)
  6. yield is the quantity of product that would be obtained if the limiting reactant in a reaction reacted completely.
  7. average mass of atoms of an element
  8. a ratio between the amounts in moles of any two compounds involved in a chemical reaction.
  9. the starting material for a reaction(located on the LEFT SIDE)
  10. the mass of one mole of a substance
Down
  1. the percentage by mass of each element in a compound.
  2. a process used to convert one unit to another.
  3. a chemical mass unit, defined to be 6,022 X 10^23 molecules, atoms, or a collection of things.
  4. determines how much product may result from a chemical reaction
  5. yield is the quantity of a product that is obtained from a chemical reaction.
  6. a multiplier or factor that measures some property(the big number on the left)

16 Clues: average mass of atoms of an element • the mass of one mole of a substance • a process used to convert one unit to another. • the quantitative relationship in chemical reactions • the percentage by mass of each element in a compound. • the starting material for a reaction(located on the LEFT SIDE) • determines how much product may result from a chemical reaction • ...

Macromolecules Crossword Puzzle 2023-12-08

Macromolecules Crossword Puzzle crossword puzzle
Across
  1. Substance changed by a chemical reaction
  2. A molecule that includes sugars and starches
  3. A process by which substances break and form chemical bond and make them into new substances
  4. Molecule that makes up proteins
  5. Substance formed by a chemical reaction
  6. Another word for a simple sugar
  7. Reactant in a chemical reaction which an enzyme acts
  8. A chemical bond formed when two atoms share one or more pairs of electrons
Down
  1. Large,complex molcules that play important roles in a organism
  2. Genetic material of organisms
  3. A nucleotide that provides energy
  4. An attraction between molecules
  5. Carries genetic instructions for development
  6. A molecule with a high number of atoms
  7. A molecule produced by a living organsim
  8. A protein that catalyzes reactions in an experiment
  9. Substance that dissolves in a solvent
  10. A lipid containing a phosphate group
  11. Smallest basic unit of matter
  12. A nonpolar molecule

20 Clues: A nonpolar molecule • Genetic material of organisms • Smallest basic unit of matter • An attraction between molecules • Molecule that makes up proteins • Another word for a simple sugar • A nucleotide that provides energy • A lipid containing a phosphate group • Substance that dissolves in a solvent • A molecule with a high number of atoms • ...

Unit 3 (1st/2) 2022-11-22

Unit 3 (1st/2) crossword puzzle
Across
  1. barrier that prevents chemical reactions from occurring; this barrier needs to be met and overcome for chemical reactions to take place
  2. location on enzyme where substrate binds
  3. basic unit of life
  4. reactants in an enzyme-catalyzed reaction
  5. variable that is manipulated by the scientist to test their hypothesis
  6. type of energy that is stored due to objects position or condition
  7. type of reaction in which there is an overall/net release in energy; using ATP is an example
  8. enzymes _______activation energy to speed up chemical reactions
  9. all chemical reactions that occur in an organism
  10. the structural unit that consists of substrate bound to enzyme
Down
  1. type of energy that is due to objects' movement or motion
  2. type of graph used to compare the averages of different worded categories
  3. processes the break old bond and form new bonds; rearranged atoms to make new substances from old substances
  4. form of potential energy stored in chemical bonds of molecule
  5. type of graph used to determine pattern or relationship between independent and dependent variable
  6. new substances formed after a chemical reaction; placed after the arrow in a chemical reaciton
  7. the capacity to cause change
  8. after supporting with a chemical reaction, enzymes can be ______ to support with another round of chemical reactions
  9. energy currency within cells, molecule that stores energy to be directly used by cells
  10. biological catalysts that are proteins; speed up chemical reactions by lowering activation energy
  11. type of reaction in which there is an overall/net absorption of energy; making ATP is an example
  12. substances the participate in chemical reactions; placed before the arrow in a chemical equation
  13. variable that relies on the independent variable and is the outcome/result of experiments
  14. substances that speed up chemical reactions by lowering activation energy
  15. type of graph used to show change in dependent variable over consecutive/continuous time
  16. substrate and enzyme are __________ to bind together; enzymes are specific to the substrates they bind

26 Clues: basic unit of life • the capacity to cause change • location on enzyme where substrate binds • reactants in an enzyme-catalyzed reaction • all chemical reactions that occur in an organism • type of energy that is due to objects' movement or motion • form of potential energy stored in chemical bonds of molecule • ...

Chemistry Crossword 2017-11-09

Chemistry Crossword crossword puzzle
Across
  1. the smallest part of an element that is representative of that element; a neutral particle made up of a nucleus containing protons and neutrons, and in which the number of electrons equals the number of protons
  2. (in chemistry) vertical column of elements in the periodic table; elements in a family all have similar chemical properties; also called a group
  3. chemical reaction that occurs when oxygen reacts with a substance to form a new substance and give off energy
  4. chemical reaction that takes place in cells; food (sugar) reacts with oxygen to produce energy, water, and carbon dioxide
  5. change that results when two or more substances react to create a different substance or substances; the new substances have completely different properties from the original ones
  6. group 2 elements in the periodic table; their reactivity is not as strong as that of the alkali metals
  7. chemical reaction that releases energy
  8. change of state from a gas to a solid
  9. number of protons in the nucleus of one atom of an element
  10. unit measure of atomic mass; 1 amu is equal to 1/12 the mass of a carbon 12 atom
Down
  1. group 1 elements in the periodic table, not including hydrogen; the most reactive of the metals
  2. cloudy mixture in which tiny particles of one substance are held within another and particles cannot be separated out from the other substance
  3. reaction that takes place when two or more substances react to form new substances
  4. change of state from a gas to a liquid
  5. slow chemical change that occurs when oxygen in the air reacts with a metal
  6. chemical reaction that absorbs energy
  7. description of a solid that can be stretched into a long wire
  8. principle that matter is not created or destroyed in a chemical reaction; the mass of the products always equals the mass of the reactants
  9. substance that helps a chemical reaction to proceed more quickly
  10. description of how a substance interacts with other substances, such as acids;chemical properties are observable only when a chemical change occurs
  11. change of state from a liquid to a solid
  12. amount of mass in a given volume of a substance
  13. catalyst involved in chemical reactions in living things
  14. chemical combination of two or more elements in a specific ratio
  15. combination of symbols that represent a compound; the formula identifies the elements in the compound and the amount of each element
  16. ability of a substance to conduct electricity or heat

26 Clues: chemical reaction that absorbs energy • change of state from a gas to a solid • change of state from a gas to a liquid • chemical reaction that releases energy • change of state from a liquid to a solid • amount of mass in a given volume of a substance • ability of a substance to conduct electricity or heat • catalyst involved in chemical reactions in living things • ...

Chemistry Crossword 2017-11-15

Chemistry Crossword crossword puzzle
Across
  1. substance that helps a chemical reaction to proceed more quickly
  2. change of state from a gas to a liquid
  3. dull, brittle element that does not conduct electricity
  4. measure of atomic mass; 1 amu is equal to 1/12 the mass of a carbon 12 atom
  5. energy stored in chemicals and released when chemicals react; a form of potential or stored energy
  6. a reaction that takes place when two or more substances react to form new substances
  7. chemical reaction that takes place in cells; food (sugar) reacts with oxygen to produce energy, water, and carbon dioxide
  8. chemical combination of two or more elements in a specific ratio
  9. chemical reaction that occurs when oxygen reacts with a substance to form a new substance and give off energy
  10. the smallest part of an element that is representative of that element; a neutral particle made up of a nucleus containing protons and neutrons, and in which the number of electrons equals the number of protons
  11. group 18 elements in the periodic table;the most stable and unreactive elements
Down
  1. ability of a substance to conduct electricity or heat
  2. group 1 elements in the periodic table, not including hydrogen;the most reactive of the metals
  3. mass of one atom of an element calculated from the total number of protons,neutrons, and electrons of that atom; measured in atomic mass units (amu)
  4. number of protons in the nucleus of one atom of an element
  5. cloudy mixture in which tiny particles of one substance are held within another and particles cannot be separated out from the other substance
  6. principle that matter is not created or destroyed in a chemical reaction; the mass of the products always equals the mass of the reactants
  7. combination of symbols that represent a compound; the formula identifies the elements in the compound and the amount of each element
  8. chemical reaction that absorbs energy
  9. description of how a substance interacts with other substances, such as acids;chemical properties are observable only when a chemical change occurs
  10. chemical reaction that releases energy
  11. group 2 elements in the periodic table; their reactivity is not as strong as that of that alkali metals
  12. change that results when two or more substances react to create a different substance or substances; the new substances have completely different properties from the original ones
  13. an experiment in which all reactants and all products of a chemical reaction are accounted for
  14. group 17 elements in the periodic table;the most reactive non-metals

25 Clues: chemical reaction that absorbs energy • change of state from a gas to a liquid • chemical reaction that releases energy • ability of a substance to conduct electricity or heat • dull, brittle element that does not conduct electricity • number of protons in the nucleus of one atom of an element • substance that helps a chemical reaction to proceed more quickly • ...

9 2025-11-24

9 crossword puzzle
Across
  1. SI unit of energy
  2. System that exchanges energy, not matter
  3. Making a solution less concentrated
  4. System that exchanges matter and energy
  5. Measure of disorder
  6. Medium that dissolves solute
  7. Everything outside the system
  8. Total heat content of a system
  9. Energy to raise 1g by 1°C
  10. Point where no more solute dissolves
  11. Unit of heat energy
  12. Slows down a chemical reaction
Down
  1. Ability to dissolve in a solvent
  2. Absorbs heat from surroundings
  3. Releases heat to surroundings
  4. Speeds reaction without being used up
  5. Study of reaction rates
  6. Dissolved in water
  7. Speed of a chemical reaction
  8. Solid formed in a solution reaction
  9. Amount of solute in solution
  10. No exchange of matter or energy
  11. Model explaining reaction rates
  12. Portion of universe under study
  13. Minimum energy to start reaction

25 Clues: SI unit of energy • Dissolved in water • Measure of disorder • Unit of heat energy • Study of reaction rates • Energy to raise 1g by 1°C • Speed of a chemical reaction • Medium that dissolves solute • Amount of solute in solution • Releases heat to surroundings • Everything outside the system • Absorbs heat from surroundings • Total heat content of a system • ...

Biology Ch 2 Vocabulary 2022-09-18

Biology Ch 2 Vocabulary crossword puzzle
Across
  1. Are catalysts for chemical reactions in a living thing.
  2. Is a polymer made of monomers called amino acids.
  3. Are the substances made by a chemical reaction.
  4. Is a large molecule or macromolecules, made of many monomers bonded together.
  5. Change substances into different substances by breaking and forming chemical bonds.
  6. Are molecules composed of carbon, hydrogen, and oxygen and they include sugar and starches.
  7. Forms when atoms share a pair of electrons.
  8. Are chains of carbon atoms bonded to hydrogen atoms.
  9. Is a substance that is present in the greater amount and that dissolves another substance.
  10. Is the amount of energy that will break a bond between two atoms.
  11. Is a mixture of substances that is the same throughout.
  12. Chemical reaction releases more energy that it absorbs.
  13. Are molecules that contain carbon, hydrogen, oxygen,nitrogen, and sometimes sulfur.
  14. Is the amount of energy that needs to be absorbed for a chemical reaction to start.
  15. Is reached when both reactants and products are made at the same rate.
  16. The attraction between molecules of different substances.
Down
  1. Are the substances changed during a chemical reaction.
  2. Are compounds that removes H+ ions in a solution.
  3. Is a substance that dissolves in a solvent.
  4. Is the measurement of the acidity in a solution.
  5. The attraction among molecules of a substance.
  6. The specific reactant that an enzyme acts on.
  7. Is an atom that has gained or lost one or more electrons.
  8. Is a substance made of atoms of different elements bonded together in a certain ratio.
  9. Is a substance that decreases the activation energy needed to start a chemical reaction and, as a result, also increases the rate of a chemical reaction.
  10. Is a compound that releases a proton when dissolved in water.
  11. Are polymers that are made up of monomers called nucleotides.
  12. The smallest basic unit of matter.
  13. Chemical reaction absorbs more energy than it releases.
  14. Is each subunit in the complete molecule.
  15. Is two or more atoms held together by covalent bonds.
  16. Forms through the electrical force between oppositely charged ions.
  17. Are nonpolar molecules that include fats, oils, cholesterol.
  18. One particular type of atom, and cannot be broken down into simpler substances by ordinary chemical means.

34 Clues: The smallest basic unit of matter. • Is each subunit in the complete molecule. • Is a substance that dissolves in a solvent. • Forms when atoms share a pair of electrons. • The specific reactant that an enzyme acts on. • The attraction among molecules of a substance. • Are the substances made by a chemical reaction. • Is the measurement of the acidity in a solution. • ...

Vocabulary Chapter 7-Chemical Reactions (for any words that have two words, there is a dash in between) 2021-12-16

Vocabulary Chapter 7-Chemical Reactions (for any words that have two words, there is a dash in between) crossword puzzle
Across
  1. an amount of a substance that contains approximately 6.02 x 10 to the 23 particles of that substance.
  2. the energy stored in the chemical bonds of a substance
  3. In a chemical reaction, the substances that undergo change
  4. a representation of a chemical reaction in which the reactants and products are expressed as formulas
  5. a chemical reaction that releases energy to its surroundings
  6. a reaction in which one element takes the place of another element in a compound
Down
  1. The new substances formed as a result of that change
  2. one in which two different compounds exchange positive ions and form two new compounds
  3. a reaction in which a compound breaks down into two or more simpler substances
  4. the numbers that appear before the formulas
  5. the mass of one mole of a substance
  6. a chemical reaction that absorbs energy from its surroundings
  7. a reaction in which two or more substances react to form a single substance

13 Clues: the mass of one mole of a substance • the numbers that appear before the formulas • The new substances formed as a result of that change • the energy stored in the chemical bonds of a substance • In a chemical reaction, the substances that undergo change • a chemical reaction that releases energy to its surroundings • ...

Unit 6 Crossword 2022-01-04

Unit 6 Crossword crossword puzzle
Across
  1. a solution usng water as the solvent; shown a "aq" in a chemical equation
  2. a type of reaction shown as A+B-->AB
  3. process used to determine the concentration of a solution; involves a color change
  4. a process in which atoms rearrange to form a new substance
  5. what we call the row on the periodic table
  6. (2 words) a type of bond that holds atoms together by unequally shared electrons
  7. a value that describes the relative strength in which atoms attract electrons in a bond
  8. a type of reaction between a substance and oxygen
Down
  1. a type of ion composed of two or more atoms that act as a unit and have a significant charge.
  2. a type of bond that involves atoms sharing electrons
  3. (3 words) this law is proven by a balanced chemical equation
  4. a type of reaction shown as AB-->A+B
  5. a type of reaction shown as A+BC-->AC+B
  6. electrons that occupy the highest energy level of an atom
  7. the substances before a chemical reaction occurs
  8. the substances after a chemical reaction occurs
  9. another word for charged atoms
  10. a type of bond that holds oppositely charged atoms together

18 Clues: another word for charged atoms • a type of reaction shown as A+B-->AB • a type of reaction shown as AB-->A+B • a type of reaction shown as A+BC-->AC+B • what we call the row on the periodic table • the substances after a chemical reaction occurs • the substances before a chemical reaction occurs • a type of reaction between a substance and oxygen • ...

h.12 DNA & Ch. 2-4 Enzymes Vocab - Jaden Daquiz 2023-12-06

h.12 DNA & Ch. 2-4 Enzymes Vocab - Jaden Daquiz crossword puzzle
Across
  1. enzyme that adds a few RNA nucleotides to the beginning of the new DNA strand
  2. a virus that infects bacteria
  3. perfectly fit hydrogen bonds only through the means of certain bases being paired together
  4. makes up genes which must store, copy, and transmit the genetic information in a cell
  5. the region where a protein binds itself (or another substance) during a reaction
  6. substance that speeds up the rate of a chemical reaction
  7. bases that contain nitrogen
  8. biological catalyst
  9. a spiral chain that contains units of protein, nucleic acids, or other large molecule/s extendedly
Down
  1. when changes in temperature or pH change the shape of a protein, making it non-functional
  2. when a cell does a copying process of DNA
  3. enzyme that link the fragments of the backbone of DNA strand together
  4. changing one bacteria permanently to a different type by experiment
  5. a process that changes or fully transforms one chemical into another
  6. joins individual nucleotides to produce a DNA molecule
  7. elements/compounds that enter the chemical reaction/experiment
  8. when changes in temperature or pH change the shape of a protein, making it non-functional
  9. energy needed that helps start a chemical reaction
  10. two strands of DNA running in opposite directions
  11. the substance produced after the chemical reaction

20 Clues: biological catalyst • bases that contain nitrogen • a virus that infects bacteria • when a cell does a copying process of DNA • two strands of DNA running in opposite directions • energy needed that helps start a chemical reaction • the substance produced after the chemical reaction • joins individual nucleotides to produce a DNA molecule • ...

Chemistry extra credit 2025-01-28

Chemistry extra credit crossword puzzle
Across
  1. A chemical reaction in which a substance loses electrons.
  2. A measure of the acidity or alkalinity of a solution.
  3. A chemical reaction in which a substance gains electrons.
  4. A mixture in which one substance dissolves in another.
  5. A particle with no charge, found in the nucleus of an atom.
  6. A combination of two or more substances that are not chemically bonded.
  7. A vertical column in the periodic table, containing elements with similar properties.
  8. A substance made of two or more different types of atoms bonded together.
  9. A substance that undergoes a chemical reaction.
  10. A substance that is dissolved in a solvent to form a solution.
  11. A substance that speeds up a chemical reaction without being consumed in the process.
  12. A substance made of only one type of atom.
  13. A positively charged particle found in the nucleus of an atom.
  14. Atoms of the same element that have different numbers of neutrons.
Down
  1. The process of a liquid turning into a gas at the surface.
  2. A substance produced as a result of a chemical reaction.
  3. Two or more atoms bonded together.
  4. A reaction that absorbs heat from its surroundings.
  5. A principle that mass is neither created nor destroyed in a chemical reaction.
  6. An atom or molecule with a charge, either positive (cation) or negative (anion).
  7. The process of a gas turning into a liquid.
  8. A solution that is neither acidic nor basic, with a pH of 7.
  9. A substance that accepts hydrogen ions (H⁺) or releases hydroxide ions (OH⁻) in solution.
  10. The smallest unit of matter, made up of protons, neutrons, and electrons.
  11. The force that holds atoms together in a molecule or compound.
  12. A horizontal row in the periodic table of elements.
  13. A reaction that releases heat into its surroundings.
  14. A negatively charged particle that orbits the nucleus of an atom.
  15. A substance that releases hydrogen ions (H⁺) in solution.

29 Clues: Two or more atoms bonded together. • A substance made of only one type of atom. • The process of a gas turning into a liquid. • A substance that undergoes a chemical reaction. • A reaction that absorbs heat from its surroundings. • A horizontal row in the periodic table of elements. • A reaction that releases heat into its surroundings. • ...

Enzymes 2026-03-02

Enzymes crossword puzzle
Across
  1. A factor that affects enzyme activity by increasing molecular movement
  2. The best condition (temperature or pH) at which an enzyme works most efficiently
  3. The specific region on an enzyme where the substrate binds
  4. The sum of all chemical reactions occurring in a living organism
  5. The loss of enzyme shape and function due to extreme temperature or pH
  6. The speed at which a chemical reaction occurs
  7. A biological catalyst that speeds up chemical reactions in living cells
  8. The minimum energy required to start a chemical reaction
  9. A substance that slows down or prevents enzyme activity
  10. The model describing enzyme-substrate binding as a perfect fit
  11. The ability of an enzyme to act only on a particular substrate
Down
  1. The substance formed as a result of an enzyme-controlled reaction
  2. A type of inhibitor that competes with the substrate for the active site
  3. A substance that increases the rate of a chemical reaction without being used up
  4. A type of inhibitor that binds to a different part of the enzyme
  5. The substance that an enzyme acts upon
  6. A chemical process in which substances are converted into products
  7. The model where the enzyme changes shape slightly to fit the substrate
  8. A non-protein helper molecule required for some enzymes to function
  9. The type of macromolecule that enzymes are made of
  10. Increasing substrate ______ generally increases reaction rate until saturation
  11. The building blocks of proteins and enzymes
  12. A measure of acidity or alkalinity that affects enzyme shape and function

23 Clues: The substance that an enzyme acts upon • The building blocks of proteins and enzymes • The speed at which a chemical reaction occurs • The type of macromolecule that enzymes are made of • A substance that slows down or prevents enzyme activity • The minimum energy required to start a chemical reaction • The specific region on an enzyme where the substrate binds • ...

reactions of matter 2024-12-11

reactions of matter crossword puzzle
Across
  1. Is a substance that is formed as the result of a chemical reaction.
  2. A substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
  3. A chemical reaction that releases energy in the form of light or heat
  4. A representation of a chemical reaction using symbols of the elements to indicate the amount of substance, usually in moles, of each reactant and product.
  5. is the number in front of the formula, that is related to the properties of the products. For example 2 H2O means there is two molecules of water
  6. for any system closed to all transfers of matter and energy, the mass of the system must remain constant over time, as the system's mass cannot change, so quantity cannot be added or removed.
  7. A process in which one or more substances, the reactants, are converted to one or more different substances called the products
  8. A substance that takes part in and undergoes change during a reaction
Down
  1. Are those which absorb energy from the surroundings and result in a net decrease in temperature
  2. The speed at which reactants are converted in products
  3. Chemical Equation: is a chemical equation with the same number of atoms of each element on both sides of the arrow
  4. Loss of Electrons
  5. Gain of electrons
  6. A substance that slows down or prevents a particular chemical reaction or other process, or that reduces the activity of a particular reactant, catalyst, or enzyme.
  7. Mass Mass in grams of one mole of a substance
  8. A type of lettering form written lower than the things around it. In chemical formulas the number of atoms in a molecule is written in this manner
  9. The amount of a substance that contains 6.02 x 1023 particles of that substance
  10. A substance produced by a living organism that acts as a catalyst to bring about a specific biochemical reaction

18 Clues: Loss of Electrons • Gain of electrons • Mass Mass in grams of one mole of a substance • The speed at which reactants are converted in products • Is a substance that is formed as the result of a chemical reaction. • A chemical reaction that releases energy in the form of light or heat • A substance that takes part in and undergoes change during a reaction • ...

Chemical 2025-07-02

Chemical crossword puzzle
Across
  1. – something kept for future use (e.g., energy in food or fuel)
  2. – what happens when substances change chemically
  3. – a reaction that takes in heat
  4. – to use heat or fire to cause a change
  5. – the substance made after a chemical reaction
  6. – a gas needed for combustion
Down
  1. – a chemical reaction involving burning
  2. – the ability to do work or cause change
  3. – a form of energy often released in reactions
  4. – stores chemical energy and powers devices
  5. – the connection between atoms in a molecule
  6. – a substance burned to release energy
  7. – an element found in fuels and living things
  8. – something that becomes different (e.g., physical or chemical)
  9. – a reaction that gives off heat

15 Clues: – a gas needed for combustion • – a reaction that takes in heat • – a reaction that gives off heat • – a substance burned to release energy • – a chemical reaction involving burning • – to use heat or fire to cause a change • – the ability to do work or cause change • – stores chemical energy and powers devices • – the connection between atoms in a molecule • ...

Biology Crossword Puzzle 2021-10-08

Biology Crossword Puzzle crossword puzzle
Across
  1. uncontrolled cell division
  2. uniform mixture of substances
  3. controls what goes in and out of cell
  4. organisms that eat dead materials for energy
  5. consumers that eat only meat
  6. amount of energy needed for a chemical reaction to start
  7. repeated pattern of growth and cell division
  8. process by which sunlight is converted to chemical energy in plants
  9. macromolecule that holds DNA
Down
  1. cell where photosynthesis occurs
  2. organisms that produce their own food
  3. consumers that eat only plants
  4. substances changed in a chemical reaction
  5. a section of DNA with info for making a protein
  6. molecule that stores energy for cell functions
  7. organisms that eat others for energy
  8. consumers that eat meat and plants
  9. catalyst that speeds up chemical reactions
  10. need of an organism to stay stable with help of cells
  11. substances made in a chemical reaction

20 Clues: uncontrolled cell division • consumers that eat only meat • macromolecule that holds DNA • uniform mixture of substances • consumers that eat only plants • cell where photosynthesis occurs • consumers that eat meat and plants • organisms that eat others for energy • organisms that produce their own food • controls what goes in and out of cell • ...

Chemical changes 2024-11-18

Chemical changes crossword puzzle
Across
  1. A solid that forms and separates from a liquid mixture during a chemical reaction.
  2. The bubbling and fizzing that occurs when gas is released during a chemical reaction, often seen when an acid reacts with a carbonate.
  3. A substance that is formed as a result of a chemical reaction. Products are what you have after the reaction is complete.
  4. The amount of a substance (solute) present in a given volume of solution. Higher concentration means more solute is dissolved in the solution.
  5. A substance that speeds up a chemical reaction without being consumed or permanently changed by the reaction itself.
  6. A substance that starts a chemical reaction. Reactants are what you have before the reaction takes place.
  7. To recognise or point out the differences between two or more substances or concepts.
Down
  1. Change A change that affects one or more physical properties of a substance but does not change its chemical composition. Examples include changes in state, like melting or boiling.
  2. A type of chemical reaction where two or more simple substances combine to form a more complex substance.
  3. The process that occurs when reactants undergo a chemical change to form products.
  4. Equation A way of representing a chemical reaction using the names of the reactants and products, rather than chemical formulas. For example, "hydrogen + oxygen → water".
  5. Change A process where substances combine or break apart to form new substances with different properties. This often involves a change in colour, temperature, or the production of gas.
  6. Rate The speed at which a chemical reaction occurs, often measured by how quickly reactants are used up or products are formed.
  7. A process or action that makes something different from what it was before.

14 Clues: A process or action that makes something different from what it was before. • A solid that forms and separates from a liquid mixture during a chemical reaction. • The process that occurs when reactants undergo a chemical change to form products. • To recognise or point out the differences between two or more substances or concepts. • ...

Chemistry Crossword Puzzle 2023-10-30

Chemistry Crossword Puzzle crossword puzzle
Across
  1. The type of chemical that neutralizes an acid. (both words required)
  2. The rays that come highest in the Electromagnetic Spectrum and have a wavelength of 0.01 to 0.1 Ångstrom .
  3. An SI unit of measurement that represents the amount of a substance that contains the same number of particles as there are atoms in 12 grams of pure carbon-12.
  4. A reaction where two or more reactants combine to form a single product .(Other name of composition reaction)
  5. The substance that donates a proton in a chemical reaction.
  6. The newly approved name of the 118th Element or Unniloctium
  7. The Bond formed when a non-metal which has 4 valence electrons reacts and obtains
  8. A type of reaction in which a single compound breaks down into two or more elements or compounds.
Down
  1. The Scientist who proposed the theory of stationary orbits and electron engery jumping theory
  2. A substance that speeds up a chemical reaction without being consumed.
  3. The process where a liquid becomes a gas below its boiling point.
  4. The outermost energy shell of an atom.
  5. The chemical formula for methane.
  6. A chemical reaction in which heat is absorbed from the surroundings.
  7. The chemical symbol for sodium.
  8. The chemical symbol for calcium.
  9. A measure of acidity or alkalinity or the measure of the hydrogen ion concentration in a substance

17 Clues: The chemical symbol for sodium. • The chemical symbol for calcium. • The chemical formula for methane. • The outermost energy shell of an atom. • The substance that donates a proton in a chemical reaction. • The newly approved name of the 118th Element or Unniloctium • The process where a liquid becomes a gas below its boiling point. • ...

7th Mixed Up Crossword Puzzle 2026-01-27

7th Mixed Up Crossword Puzzle crossword puzzle
Across
  1. form as a result of a chemical reaction (atoms trade places)
  2. holds atoms together in a molecule
  3. step by step process in a science experiment
  4. the variable that you decide to test in an experiment
  5. the type of energy in a chemical bond before a chemical reaction
  6. tests done 3-5 times in a science experiment
  7. number of atoms in vinegar
  8. number of atoms in Copper Sulfate
  9. an educated guess
Down
  1. stays the same throughout the experiment
  2. reaction where temp decreases
  3. type of energy after a chemical bond breaks
  4. given off if there is left over kinetic energy at the end of a chemical reaction
  5. reaction where temp rises

14 Clues: an educated guess • reaction where temp rises • number of atoms in vinegar • reaction where temp decreases • number of atoms in Copper Sulfate • holds atoms together in a molecule • stays the same throughout the experiment • type of energy after a chemical bond breaks • step by step process in a science experiment • tests done 3-5 times in a science experiment • ...

physical science 2023-11-06

physical science crossword puzzle
Across
  1. a substance that is formed as the result of a chemical reaction
  2. a substance that takes part in and undergoes change during a reaction.
  3. reactants absorb heat energy
  4. the production of chemical compounds by reaction from simpler materials
  5. a reaction in which one element is substituted for another element
Down
  1. a substance that speeds up a chemical reaction
  2. an action performed or a feeling experienced in response to a situation or event.
  3. the release of heat
  4. the loss or removal of water
  5. a group of atoms bonded together
  6. a chemical process in which a substance reacts rapidly with oxygen and gives off heat
  7. the symbolic representation of a chemical reaction in the form of symbols and chemical

12 Clues: the release of heat • the loss or removal of water • reactants absorb heat energy • a group of atoms bonded together • a substance that speeds up a chemical reaction • a substance that is formed as the result of a chemical reaction • a reaction in which one element is substituted for another element • ...

REDOX REACTION CONCEPT 2019-11-12

REDOX REACTION CONCEPT crossword puzzle
Across
  1. gain of electron
  2. another name for "oxidation - reduction" reaction is
  3. reverse of a combination reaction, the breakdown of a chemical compound into individual elements
  4. in electrolysis reduction happens at
  5. element don't have oxidation number
  6. chemical substances that causes reduction in another substances and itself is oxidised
  7. reduction is gain of electron, hydrogen and
  8. oxidation is loses of electron, oxygen and
Down
  1. combustion and_are redox reaction.
  2. chemical substance that causes oxidization in another substances and itself is reduced
  3. which element always have oxidation number -1
  4. type of chemical reaction in which a compound and an oxidant are reacted to produce heat and a new product.
  5. loses of electron
  6. copper is reduced, its number of electron has
  7. most of the synthesis and decomposition reaction involve transfer of
  8. the product that obtained from combustion reaction are carbon dioxide and

16 Clues: gain of electron • loses of electron • combustion and_are redox reaction. • element don't have oxidation number • in electrolysis reduction happens at • oxidation is loses of electron, oxygen and • reduction is gain of electron, hydrogen and • which element always have oxidation number -1 • copper is reduced, its number of electron has • ...

Chemistry Vocab 2025-07-31

Chemistry Vocab crossword puzzle
Across
  1. – A substance that increases H₃O⁺ ion concentration in water.
  2. CHANGE – A process that creates one or more new substances.
  3. – A measure of the total heat content of a system at constant pressure.
  4. – Groups of two or more atoms bonded together.
  5. – The physical form of matter: solid, liquid, or gas.
  6. – A reaction that absorbs heat, causing the temperature to drop.
  7. – A mixture in which particles eventually settle at the bottom.
  8. – Substances formed at the end of a chemical reaction.
  9. – A very small piece of matter.
  10. – A combination of substances that can be separated.
  11. – Substances that start a chemical reaction.
  12. – A reaction that releases heat, raising the temperature of the surroundings.
Down
  1. – A mixture where particles are between the size of those in a solution and suspension.
  2. – A scale that measures acidity or alkalinity of a solution.
  3. – A substance that speeds up a chemical reaction without being used up.
  4. – A chemical reaction where a substance reacts with oxygen, producing heat and light.
  5. – A substance that increases OH⁻ ion concentration in water.
  6. – Positively charged particles found in the nucleus of an atom.
  7. – Anything that has mass and takes up space.
  8. – The smallest unit of an element that retains its properties.
  9. CHANGE – A change that does not alter the chemical makeup of a substance.
  10. – To spread evenly into another substance to form a solution.
  11. – Negatively charged particles that orbit an atom's nucleus.
  12. – A solid that forms and settles when two solutions react.
  13. – A mixture where one substance dissolves in another.

25 Clues: – A very small piece of matter. • – Anything that has mass and takes up space. • – Substances that start a chemical reaction. • – Groups of two or more atoms bonded together. • – A combination of substances that can be separated. • – The physical form of matter: solid, liquid, or gas. • – A mixture where one substance dissolves in another. • ...

chemical reaction crossword puzzle 2020-04-23

chemical reaction crossword puzzle crossword puzzle
Across
  1. - Any chemical element that is an effective conductor of electricity and heat can be defined as
  2. - also applied to describe a solution or mixture in which water is the solvent
  3. equation - hydrogen + oxygen
  4. - its volume is not fixed; it will expand to fill a container
  5. - a substance whose atoms all have the same number of protons
  6. - occurs between a fuel and an oxidizing agent that produces energy, usually in the form of heat and light
  7. reaction -a process that involves rearrangement of the molecular or ionic structure of a substance
  8. - on the right-hand side
  9. - additional substance
Down
  1. - substance formed when two or more chemical elements are chemically bonded together
  2. of conservation of atoms - total mass of all the substances taking part in the reaction remains the same
  3. -definite volume, it does not have a definite shape
  4. ion - an ion composed of two or more atoms
  5. - chemical element that mostly lacks the characteristics of a metal
  6. - transfer of valence electron(s) between atoms
  7. - atoms or molecules are tightly connected
  8. - given on the left-hand side
  9. - # after the element
  10. -single compound breaks down into simpler compounds
  11. equation - reactant given on the left-hand side and the product on the right-hand side

20 Clues: - # after the element • - additional substance • - on the right-hand side • equation - hydrogen + oxygen • - given on the left-hand side • - atoms or molecules are tightly connected • ion - an ion composed of two or more atoms • - transfer of valence electron(s) between atoms • -definite volume, it does not have a definite shape • ...

Unit B Vocabulary Crossword 2014-11-06

Unit B Vocabulary Crossword crossword puzzle
Across
  1. Combination of pure substances, however the substances do not combine chemically.
  2. have both metallic and non-metallic properties.
  3. An experiment in which all products can escape.
  4. When two or more materials react and create new materials
  5. A solid material that is typically hard, shiny, malleable, ductile, and makes a good conductor.
  6. A chemical reaction that takes in energy.
  7. Is anything that has mass and takes up space.
  8. When a material chanegs from one state to another, and is reversible.
  9. the law that matter can not be created or destroyed in a chemical reaction.
  10. Pure substances formed as a result of the attraction between ions.
  11. A chemical reaction in which oxygen reacts with another substance to form a new one and gives off energy.
  12. Acronym that defines a system of easy to see warning symbols.
  13. Horizontal row on the periodic table.
  14. A change from a solid to a liquid.
  15. A slow chemical reaction in which oxygen reacts with metal.
  16. A table in which the elements are organized.
Down
  1. Substance that helps the speed the rate of a chemical reaction.
  2. A chemical reaction that releases energy.
  3. When two or more substances combine to form a new substance.
  4. An experiment in which all products can escape.
  5. A pure substance and cannot be broken down further.
  6. Atom that has become electrically charged because it has gained or lost electrons.
  7. mass of one atom of an element, calculaterd from the total number of protons.
  8. When a solid changes directly into a gas
  9. A pure substabnce created when non-metals combine.
  10. Vertical column on the periodic table.

26 Clues: A change from a solid to a liquid. • Horizontal row on the periodic table. • Vertical column on the periodic table. • When a solid changes directly into a gas • A chemical reaction that releases energy. • A chemical reaction that takes in energy. • A table in which the elements are organized. • Is anything that has mass and takes up space. • ...

Arson and Explosives Crossword 2021-04-12

Arson and Explosives Crossword crossword puzzle
Across
  1. bombing incidents that confront police agencies today involve
  2. a chemical reaction accompanied by the absorption of heat
  3. transformation of a substance produced by the action of heat
  4. any material used to start or sustain a fire
  5. a violent release of energy caused by a chemical or nuclear reaction
  6. the minimum temperature at which a fuel spontaneouly ignites
  7. the amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit
  8. a mechanical device you can carry in your hand that will pick up compounds
  9. The loss of electrons from a substance involved in a redox reaction.
  10. an exertion of force
Down
  1. the lowest temperature at which the vapor of a combustible liquid can be ignited in air
  2. a sudden outburst
  3. What most arsons are started with
  4. the type of chemical reaction fire is
  5. a high explosive that normally has to be detonated by a primary explosive.
  6. a very rapid oxidation reaction accompanied by the generation of a low-intensity pressure wave that can disrupt the surroundings
  7. substance reacts with oxygen to give heat and light
  8. a high explosive that is easily detonated by heat, shock, or friction
  9. Examples of this explosive type are :Dynamite, TNT, PETN and RDX
  10. a chemical reaction accompanied by the evolution of heat

20 Clues: a sudden outburst • an exertion of force • What most arsons are started with • the type of chemical reaction fire is • any material used to start or sustain a fire • substance reacts with oxygen to give heat and light • a chemical reaction accompanied by the evolution of heat • a chemical reaction accompanied by the absorption of heat • ...

Chapter 16 and 17 Vocab 2022-03-16

Chapter 16 and 17 Vocab crossword puzzle
Across
  1. amount of energy absorbed by system as heat during process at constant pressure (H = Hproducts - Hreactants)
  2. minimum energy required to transform reactants into activated complex Ea
  3. amount of energy required to raise temperature 1g by 1C or 1K (J/(g*K))
  4. power to which reactant concentration is raised
  5. action of a catalyst
  6. slowest-rate step for the chemical reaction
  7. overall enthalpy change in reaction is equal to sum of enthalpy changes for individual steps
  8. S, simple qualitative way as a measure of the degree of randomness of particles
  9. study of transfers of energy as heat, accompany chemical reactions & physical changes
  10. measure of average kinetic energy of particles in sample of matter
  11. change in concentration of reactants per unit time as reaction proceeds
  12. enthalphy change that occurs during complete combustion of one mole of substance
  13. energy transferred between samples of matter because of difference of temperature
  14. △G = △H - T△S
Down
  1. involve reactants in two different phases
  2. species that appear in some steps but not in net equation
  3. same phase as all reactant and products in reaction system
  4. energy absorbed or released as heat in chemical or physical change
  5. equation that relates rate and concentrations of reactants
  6. reaction whose reacts and products exist in single phase
  7. set of assumptions regarding collisions and reactions
  8. reduces the activation energy for a chemical reaction
  9. G, also known as Gibbs free energy
  10. phase is different from that of the reactants
  11. quantity of energy transferred as heat during a chemical reaction

25 Clues: △G = △H - T△S • action of a catalyst • G, also known as Gibbs free energy • involve reactants in two different phases • slowest-rate step for the chemical reaction • phase is different from that of the reactants • power to which reactant concentration is raised • set of assumptions regarding collisions and reactions • reduces the activation energy for a chemical reaction • ...

Energy Flow Vocabulary 2021-09-21

Energy Flow Vocabulary crossword puzzle
Across
  1. meat eaters ex: tigers
  2. a chemical substance that reacts with another
  3. can only be a primary consumer ex: bunny
  4. shows the amount of energy need to support the ecosystem
  5. process in which producers convert CO2 and H2O into sugar and oxygen
  6. place where photosynthesis takes place
  7. must eat food to receive energy
  8. consumers that are hunted and killed
  9. use radiant energy to create their own food
Down
  1. the chemical reaction
  2. show feeding relationships in an ecosystem
  3. levels of consumers in an ecosystem
  4. a written expression of a chemical reaction
  5. receives energy from the primary consumer
  6. consumers who hunt and kill other consumers
  7. glucose is an example of this type of energy
  8. humans are __________
  9. light energy
  10. receives energy from the secondary consumer
  11. another name for sugar
  12. a chemical substance created in a chemical reaction
  13. 1st consumer

22 Clues: light energy • 1st consumer • the chemical reaction • humans are __________ • meat eaters ex: tigers • another name for sugar • must eat food to receive energy • levels of consumers in an ecosystem • consumers that are hunted and killed • place where photosynthesis takes place • can only be a primary consumer ex: bunny • receives energy from the primary consumer • ...

Chemistry: Types of Bonds and Reactions 2023-04-20

Chemistry: Types of Bonds and Reactions crossword puzzle
Across
  1. Type of bond between an anion and cation.
  2. An ion formed by losing valence electrons.
  3. Atoms that are grouped with the same name because they have the same number of protons.
  4. A chemical reaction where two compounds trade placements to create an insoluble solid.
  5. A type of electron in the highest energy level that are involved in bonding.
  6. A full set of valence electrons.
  7. A chemical reaction where low complexity chemicals combine to form a larger, more complex compound.
  8. A chemical reaction where a hydrocarbon is combined with oxygen to form carbon dioxide and water.
  9. Type of bond between two neutral atoms sharing valence electrons.
  10. A column of elements with the same number of valence electrons on the Periodic Table.
  11. The charge of an anion.
Down
  1. A row representing an energy level on the Periodic Table.
  2. Type of bond between metals freely sharing valence electrons.
  3. The charge of a cation.
  4. An ion formed by gaining valence electrons.
  5. A chemical reaction where a lower reactivity element is replaced in a compound by a higher reactivity element.
  6. A chemical reaction where a single large compound breaks apart into smaller, less complex chemicals.
  7. The charge on an Oxygen ion (oxide ion).
  8. The charge on an Aluminum ion.
  9. Protons - Electrons = _______________

20 Clues: The charge of a cation. • The charge of an anion. • The charge on an Aluminum ion. • A full set of valence electrons. • Protons - Electrons = _______________ • The charge on an Oxygen ion (oxide ion). • Type of bond between an anion and cation. • An ion formed by losing valence electrons. • An ion formed by gaining valence electrons. • ...

Chem Vocab 2019-10-31

Chem Vocab crossword puzzle
Across
  1. is a very simplified representation of the valence shell electrons in a molecule
  2. an ion consisting of exactly one atom
  3. usually refers to the separation of charges within a molecule
  4. number assigned to an element in chemical combination which represents the number of electrons lost
  5. the electrons shared by the atoms spend a greater amount of time
  6. a lasting attraction between atoms, ions or molecules
  7. the breakdown of a single entity into two or more fragments
  8. is the weakest intermolecular force
  9. cause to be deposited in solid form from a solution
  10. inorganic compounds that take the form of discrete molecules
  11. a chemical bond in which one pair of electrons is shared between two atoms
  12. a high-temperature exothermic redox chemical reaction
  13. a technique that uses a direct electric current to drive an otherwise non-spontaneous chemical reaction
  14. known as a double replacement reaction or metathesis
  15. a type of bond that occurs when two atoms share a pair of electrons with each other
  16. electron pair repulsion theory, or VSEPR theory, is a model used in chemistry
  17. a chemical reaction expressed in words rather than chemical formulas
  18. is the symbolic representation of a chemical reaction in the form of symbols and formulae
  19. is a chemical reaction where the reactants form products that, in turn, react together
  20. an atom is the charge that atom would have if the compound was composed of ions. 1
  21. the empirical formula of any ionic or covalent
  22. is defined as the amount of energy required to break apart a mole of molecules
  23. is a chemical compound composed of ions held together
  24. is a way of describing bonding in certain molecules or ions
  25. known as a molecular ion, is a charged chemical
  26. is a chemical bond where two or more electron pairs are shared between two atoms
  27. formula of a chemical compound is the simplest positive integer ratio of atoms
Down
  1. a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction
  2. is an empirical, calculated, and structurally analytical progression of a series of metals
  3. NaCl
  4. a type of chemical bonding that involves the electrostatic attraction
  5. is a substance composed of exactly two different elements
  6. Helpful tools in thinking about bonding
  7. the concept of mixing atomic orbitals into new hybrid orbitals
  8. consists of the chemical symbols for the constituent elements
  9. a set of rules to generate systematic names for chemical compounds
  10. a substance's ability to deform under pressure
  11. of a compound is a ratio of an amount of each element to the total amount
  12. equation shows the symbols of the elements in the compound and the ratio
  13. the numbers in front of the formulas
  14. known as a single-replacement reaction
  15. called a molecular bond, is a chemical bond that involves the sharing of electron pairs between atoms
  16. direct combination reaction is a type of chemical reaction
  17. physical property of a material associated with the ability to be hammered thin or stretched into wire without breaking
  18. is the concept of mixing atomic orbitals into new hybrid
  19. is a type of chemical bonding that rises from the electrostatic attractive force
  20. an anion containing one or more oxygen atoms bonded to another element
  21. a separation of electric charge leading to a molecule or its chemical groups
  22. a formula which shows the arrangement of atoms in the molecule of a compound
  23. a mathematical relationship or rule expressed in symbols
  24. a measure of the energy contained in the crystal lattice of a compound, equal to the energy that would be released if the component ions were brought together from infinity
  25. is an attraction between two atoms that already participate in other chemical bonds
  26. the amount of a compound with the same mass in grams

53 Clues: NaCl • is the weakest intermolecular force • the numbers in front of the formulas • an ion consisting of exactly one atom • known as a single-replacement reaction • Helpful tools in thinking about bonding • a substance's ability to deform under pressure • the empirical formula of any ionic or covalent • known as a molecular ion, is a charged chemical • ...

Chemical Reactions 2022-11-01

Chemical Reactions crossword puzzle
Across
  1. substance that is altered or incorporated into another substance in a chemical reaction
  2. a substance that causes a chemical reaction to happen more quickly
  3. Reaction where an element replaces an element inside of a compound creating a new compound and new element.
  4. Reaction where two compounds react to form two new compounds.
  5. Reaction were two reactants become one product.
  6. Reaction where oxygen reacts with a compound usually a hydrocarbon.
Down
  1. an equation representation of a chemical reaction using symbols of the elements to indicate the amount of substances, usually in moles of each reactant and product
  2. an equation representation of a chemical reaction using symbols of the elements to indicate each reactant and product
  3. a list of metals ranked in order of decreasing reactivity to displace
  4. an equation representation of a chemical reaction using symbols of the elements but does NOT indicate the amount of substance
  5. Reaction where one reactant becomes two or more products.
  6. substance resulting from other substances in a chemical reaction

12 Clues: Reaction were two reactants become one product. • Reaction where one reactant becomes two or more products. • Reaction where two compounds react to form two new compounds. • substance resulting from other substances in a chemical reaction • a substance that causes a chemical reaction to happen more quickly • ...

Chapter 2 2022-03-21

Chapter 2 crossword puzzle
Across
  1. a characteristic that has the ability to change into another substance
  2. matter in not created nor destroyed
  3. the minimum amount of energy needed to start a chemical reaction
  4. The amount of one material in a certain volume of another material.
  5. a solid that form from solution during a chemical reaction
  6. the substances you have at the beginning
  7. matter that can enter or leave their environment
  8. the substances when you complete the reaction
  9. two or more elements or compounds combine to make more complex substances
  10. A material that increases the rate of a reaction by lowering the activation energy.
  11. a easy way to show a chemical reaction using symbols instead of roles
  12. Any change that changes or alters the appearance of a substance
  13. a reaction that releases energy in the form of heat
Down
  1. a material used to decrease the reaction rate.
  2. breaks down compounds into simpler forms
  3. a change in matter that one or more new substances
  4. a characteristic of a substance that can be observed without changing into another substance
  5. a reaction in which energy is absorbed and does not always result in a decrease in temperature.
  6. anything that has mass and takes up space
  7. matter is not allowed to leave or enter
  8. a rapid reaction between oxygen and a substance called fuel
  9. When one element replaces another in a compound
  10. a material that releases energy when it burns
  11. a number placed in front of a chemical formula in an equation
  12. A biological catalyst that lowers the activation energy of reactions in cells.

25 Clues: matter in not created nor destroyed • matter is not allowed to leave or enter • breaks down compounds into simpler forms • the substances you have at the beginning • anything that has mass and takes up space • a material that releases energy when it burns • the substances when you complete the reaction • a material used to decrease the reaction rate. • ...

Chemical Reactions 2025-04-19

Chemical Reactions crossword puzzle
Across
  1. The amount of a substance in a solution
  2. A process in which a substance undergoes a change in its atomic or molecular structure and becomes a new substance.
  3. When particles meet with enough energy required for chemical reaction to occur.
  4. Any chemicals that are formed as a result of a chemical reaction.
  5. The amount of area of a substance exposed to a chemical reaction.
  6. A sub-atomic particle found in the nucleus of an atom with a positive charge.
  7. How fast a reaction occurs, measuring by how quickly a reactant or product changes over time.
  8. A sub-atomic particle with a negative charge and a very small mass found in orbitals around the nucleus of an atom.
  9. A sub-atomic particle found in the nucleus of an atom with no charge.
Down
  1. A chemical that increases the rate of a reaction by lowering the activation energy but is not used up in the reaction.
  2. A way of representing how the electrons within an atom or ion are arranged.
  3. Any chemicals that are rearranged during a chemical reaction.
  4. Value used to describe the amount of thermal energy in a substance. Can increase the rate of reactions.
  5. Charged chemicals formed when an atom (or group of atoms) loses or gains electrons.
  6. The amount of force across the surface area of the volume of a substance.
  7. The minimum amount of energy needed for a chemical reaction to occur.

16 Clues: The amount of a substance in a solution • Any chemicals that are rearranged during a chemical reaction. • Any chemicals that are formed as a result of a chemical reaction. • The amount of area of a substance exposed to a chemical reaction. • The minimum amount of energy needed for a chemical reaction to occur. • ...

Chapter 2 (Chemistry of Life) 2018-04-11

Chapter 2 (Chemistry of Life) crossword puzzle
Across
  1. / are the substances made by a chemical reaction.
  2. is the substance that is present in the greater amount and that dissolves another substance.
  3. forms through the electrical force between oppositely charged ions.
  4. are nonpolar molecules that includes fats, oils, and cholesterol.
  5. energy / is the amount of energy that will break a bond between two atoms.
  6. are polymers that are made up of monomers called nucleotides.
  7. are chains of carbon atoms bonded to hydrogen atoms.
  8. are molecules composed of carbon, hydrogen, and oxygen, and they include sugars and starches.
  9. each subunit in the complete molecule.
  10. / chemical reaction absorbs more energy that it releases.
  11. / chemical reaction releases more energy that it absorbs.
  12. an atom that has gained or lost one or more electrons.
  13. one particular type of atom and it cannot be broken down into simpler substance by ordinary chemical means.
  14. / the specific reactants that an enzyme acts on.
  15. / a substance that decreases the activation energy needed to start a chemical reaction and also increases the rate of the chemical reaction.
  16. energy / is the amount of energy that needs to be absorbed for a chemical reaction to start.
  17. / are catalysts for chemical reactions in living things.
  18. the measure of a solution’s acidity.
  19. compounds that remove H+ ions from a solution.
  20. a mixture of substances that is the same throughout.
Down
  1. is an attraction between a slightly positive hydrogen atoms and a slightly negative atom.
  2. the attraction among molecules of a similar substance.
  3. change substances into different substances by breaking and forming chemical bonds.
  4. forms when atoms share a pair of electrons.
  5. are molecules that contain carbon, hydrogen, nitrogen, and sometimes sulfur.
  6. the smallest basic unit of matter.
  7. is two or more atoms held together by covalent bonds.
  8. / are the substances changes during a chemical reaction.
  9. / is reached when both the reactants and products are made at the same rate.
  10. is a polymer made of monomers called amino acids.
  11. is a compound that releases a proton when it dissolves in water.
  12. a substance made of atoms of different elements bonded together in certain ratio.
  13. the attraction among molecules of different substances.
  14. is a substance that dissolves in a solvent.
  15. is a large molecule, or macromolecule, made of many monomers bonded together.

35 Clues: the smallest basic unit of matter. • the measure of a solution’s acidity. • each subunit in the complete molecule. • forms when atoms share a pair of electrons. • is a substance that dissolves in a solvent. • compounds that remove H+ ions from a solution. • is a polymer made of monomers called amino acids. • / the specific reactants that an enzyme acts on. • ...

Arson and Explosives Crossword 2021-04-12

Arson and Explosives Crossword crossword puzzle
Across
  1. a chemical reaction accompanied by the absorption of heat
  2. a sudden outburst
  3. a very rapid oxidation reaction accompanied by the generation of a low-intensity pressure wave that can disrupt the surroundings
  4. What most arsons are started with
  5. substance reacts with oxygen to give heat and light
  6. fuse consisting of a tube or cord filled or saturated with combustible matter
  7. a chemical reaction accompanied by the evolution of heat
Down
  1. the minimum temperature at which a fuel spontaneouly ignites
  2. a mechanical device you can carry in your hand that will pick up compounds
  3. any material used to start or sustain a fire
  4. bombing incidents that confront police agencies today involve
  5. a high explosive that normally has to be detonated by a primary explosive.
  6. a high explosive that is easily detonated by heat, shock, or friction
  7. the amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit
  8. an exertion of force
  9. The loss of electrons from a substance involved in a redox reaction.
  10. a violent release of energy caused by a chemical or nuclear reaction
  11. the lowest temperature at which the vapor of a combustible liquid can be ignited in air
  12. transformation of a substance produced by the action of heat
  13. the type of chemical reaction fire is
  14. Examples of this explosive type are :Dynamite, TNT, PETN and RDX

21 Clues: a sudden outburst • an exertion of force • What most arsons are started with • the type of chemical reaction fire is • any material used to start or sustain a fire • substance reacts with oxygen to give heat and light • a chemical reaction accompanied by the evolution of heat • a chemical reaction accompanied by the absorption of heat • ...

Arson and Explosives Crossword 2021-04-12

Arson and Explosives Crossword crossword puzzle
Across
  1. a high explosive that normally has to be detonated by a primary explosive.
  2. a mechanical device you can carry in your hand that will pick up compounds
  3. bombing incidents that confront police agencies today involve
  4. a chemical reaction accompanied by the absorption of heat
  5. transformation of a substance produced by the action of heat
  6. any material used to start or sustain a fire
  7. a violent release of energy caused by a chemical or nuclear reaction
  8. the minimum temperature at which a fuel spontaneouly ignites
  9. the amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit
  10. The loss of electrons from a substance involved in a redox reaction.
  11. fuse consisting of a tube or cord filled or saturated with combustible matter
Down
  1. the lowest temperature at which the vapor of a combustible liquid can be ignited in air
  2. a sudden outburst
  3. What most arsons are started with
  4. the type of chemical reaction fire is
  5. a very rapid oxidation reaction accompanied by the generation of a low-intensity pressure wave that can disrupt the surroundings
  6. substance reacts with oxygen to give heat and light
  7. a high explosive that is easily detonated by heat, shock, or friction
  8. Examples of this explosive type are :Dynamite, TNT, PETN and RDX
  9. a chemical reaction accompanied by the evolution of heat

20 Clues: a sudden outburst • What most arsons are started with • the type of chemical reaction fire is • any material used to start or sustain a fire • substance reacts with oxygen to give heat and light • a chemical reaction accompanied by the evolution of heat • a chemical reaction accompanied by the absorption of heat • ...

Chemical Synthesis 2023-10-18

Chemical Synthesis crossword puzzle
Across
  1. - Chemical breakdown of a compound by water.
  2. - Reagent for forming carbon-carbon bonds.
  3. - Compound used as a starting material in a synthesis.
  4. - Introduction of an acyl group into a compound.
  5. - Introduction of halogen atoms into a compound.
  6. - Oxidation of alkenes to aldehydes or ketones.
  7. - Reaction that forms a covalent bond and produces water.
  8. - Formation of a ring-shaped compound.
  9. - Introduction of an alkyl group into a molecule.
  10. - Substance formed as a result of a chemical reaction.
  11. - Esterification reaction for making esters.
  12. - Reaction for the synthesis of alkenes from aldehydes.
  13. - Introduction of an amino group into a molecule.
  14. - Addition of a formyl group to a compound.
  15. - Amount of product obtained in a synthesis.
  16. - Removal of water from a compound.
  17. - Process of gaining electrons or hydrogen atoms.
  18. - Substance used in a chemical reaction to produce a product.
Down
  1. - Reaction that joins two compounds together.
  2. - Formation of large molecules from smaller units.
  3. - Addition of hydrogen atoms to a compound.
  4. - Reaction for the coupling of aryl halides.
  5. - Substance that speeds up a chemical reaction.
  6. - Formation of esters from carboxylic acids and alcohols.
  7. - Process of losing electrons or hydrogen atoms.
  8. - Addition of a sulfonate group to a molecule.
  9. - Rearrangement of atoms within a molecule.
  10. - To add an alkyl group to a compound.
  11. - Type of synthesis involving non-carbon-containing compounds.
  12. - Type of synthesis focusing on carbon-containing compounds.

30 Clues: - Removal of water from a compound. • - Formation of a ring-shaped compound. • - To add an alkyl group to a compound. • - Reagent for forming carbon-carbon bonds. • - Addition of hydrogen atoms to a compound. • - Rearrangement of atoms within a molecule. • - Addition of a formyl group to a compound. • - Chemical breakdown of a compound by water. • ...

Chapter 16 and 17 Vocab 2022-03-16

Chapter 16 and 17 Vocab crossword puzzle
Across
  1. amount of energy absorbed by system as heat during process at constant pressure (H = Hproducts - Hreactants)
  2. minimum energy required to transform reactants into activated complex Ea
  3. amount of energy required to raise temperature 1g by 1C or 1K (J/(g*K))
  4. power to which reactant concentration is raised
  5. action of a catalyst
  6. slowest-rate step for the chemical reaction
  7. overall enthalpy change in reaction is equal to sum of enthalpy changes for individual steps
  8. S, simple qualitative way as a measure of the degree of randomness of particles
  9. study of transfers of energy as heat, accompany chemical reactions & physical changes
  10. measure of average kinetic energy of particles in sample of matter
  11. change in concentration of reactants per unit time as reaction proceeds
  12. enthalphy change that occurs during complete combustion of one mole of substance
  13. energy transferred between samples of matter because of difference of temperature
  14. △G = △H - T△S
Down
  1. involve reactants in two different phases
  2. species that appear in some steps but not in net equation
  3. same phase as all reactant and products in reaction system
  4. energy absorbed or released as heat in chemical or physical change
  5. equation that relates rate and concentrations of reactants
  6. reaction whose reacts and products exist in single phase
  7. set of assumptions regarding collisions and reactions
  8. reduces the activation energy for a chemical reaction
  9. G, also known as Gibbs free energy
  10. phase is different from that of the reactants
  11. quantity of energy transferred as heat during a chemical reaction

25 Clues: △G = △H - T△S • action of a catalyst • G, also known as Gibbs free energy • involve reactants in two different phases • slowest-rate step for the chemical reaction • phase is different from that of the reactants • power to which reactant concentration is raised • set of assumptions regarding collisions and reactions • reduces the activation energy for a chemical reaction • ...

Chapter 2 Vocab 2022-03-18

Chapter 2 Vocab crossword puzzle
Across
  1. an easy way to show a chemical reaction
  2. when energy is released in the form of heat
  3. a rapid reaction between oxygen and a substance called fuel
  4. the substances you have at the beginning
  5. the number in front of a chemical formula in an equation
  6. a characteristic of a substance that describes its ability to change into other substances
  7. a material that increases the rate of a reaction by lowering the activation energy
  8. biological catalysts in the cells of your body
  9. is a characteristic of a substance that can be observed without changing the substance into another substance
  10. anything that has mass and takes up space
  11. a material that releases energy when it burns
  12. a solid that forms from solution during a chemical reaction
  13. states that during a chemical reaction, matter is not created or destroyed
  14. the amount of a substance in a given volume
  15. a material used to decrease the rate of a reaction
  16. when two or more elements or compounds combine to make a more complex substance
  17. matter is not allowed a way to enter or leave
Down
  1. when energy is absorbed
  2. a change in matter that produces one or more new substances
  3. a change that alters the form or appearance of a substance
  4. the new substances
  5. the study of matter and how matter changes
  6. when one element takes the place of another
  7. the minimum amount of energy needed to start a chemical reaction
  8. breaks down compounds into simpler products
  9. matter can enter from or escape to the surroundings.

26 Clues: the new substances • when energy is absorbed • an easy way to show a chemical reaction • the substances you have at the beginning • anything that has mass and takes up space • the study of matter and how matter changes • when energy is released in the form of heat • when one element takes the place of another • breaks down compounds into simpler products • ...

Y8 Reactions Key words 2025-12-11

Y8 Reactions Key words crossword puzzle
Across
  1. states that no atoms are lost or made in a chemical reaction.
  2. A substance that reacts together with another substance to form products during a chemical reaction.
  3. Occur when a new substance is formed.
  4. Type of reaction in which a compound breaks down to form two or more substances when it is heated.
  5. Reaction in which energy is given out to the surroundings.
  6. Gases or other substances can enter or leave during a reaction.
  7. The process of burning by heat.
  8. Occur when the form of a chemical substance is changed (rather than what a substance is made of).
Down
  1. Chart showing the energy in the reactants and products, and the difference in energy between them.
  2. The minimum amount of energy that colliding particles must have for them to react.
  3. No substances can enter or leave during a reaction.
  4. Scientific skill whereby scientists receive knowledge of the outside world through our sense.
  5. Reaction in which energy is taken in from the surroundings.
  6. A substance formed in a chemical reaction.
  7. A catalyst is a substance that speeds up a chemical reaction without being used up or chemically changed.

15 Clues: The process of burning by heat. • Occur when a new substance is formed. • A substance formed in a chemical reaction. • No substances can enter or leave during a reaction. • Reaction in which energy is given out to the surroundings. • Reaction in which energy is taken in from the surroundings. • states that no atoms are lost or made in a chemical reaction. • ...

chapter 17 concepts recap 2024-05-15

chapter 17 concepts recap crossword puzzle
Across
  1. transitional structure that results from an effective collision and that persists while old bonds are breaking and new bonds are forming
  2. The area of chemistry that is concerned with reaction rates and reaction mechanisms
  3. A catalyst that its phase is different from that of the reactants
  4. Species that appear in some steps but not in the net equation
  5. reactions involve reactants in two different phases.
  6. The action of a catalyst
  7. minimum energy required to transform the reactants into an activated complex
Down
  1. step by step sequence of reactions by which the overall chemical change occurs
  2. The change in concentration of reactants per unit time
  3. A catalyst that is in the same phase as all the reactants and products
  4. the proportionality constant relating the rate of the reaction to the concentrations of reactants
  5. a reaction whose reactants and products exist in a single phase
  6. set of assumptions regarding collisions and reactions
  7. The sum of all of the reactant orders
  8. the slowest step in a chemical reaction
  9. An equation that relates reaction rate and concentrations of reactants
  10. biological catalysts to facilitate chemical reactions in living organisms
  11. The power to which a reactant concentration is raised
  12. a substance that changes the rate of a chemical reaction without itself being consumed

19 Clues: The action of a catalyst • The sum of all of the reactant orders • the slowest step in a chemical reaction • reactions involve reactants in two different phases. • set of assumptions regarding collisions and reactions • The power to which a reactant concentration is raised • The change in concentration of reactants per unit time • ...

Chemical 2024-05-06

Chemical crossword puzzle
Across
  1. Matter can enter from or escape to the surroundings
  2. The process when two or more elements or compounds combine to make a more complex substance
  3. The process that breaks down compounds into simpler products
  4. The substances that you have in the beginning
  5. Characteristic of a substance that describes its ability to change into other substances
  6. A reaction that releases energy in the form of heat
  7. A solid that forms from solution during a chemical reaction
  8. A short and easy way to show a chemical reaction using symbols instead of words
  9. The study of matter and how matter changes
Down
  1. Matter is not allowed to enter or leave
  2. A principle that states that during a chemical reaction, matter is not created nor destroyed
  3. Anything that has mass and takes up space
  4. A reaction in which energy is absorbed
  5. A number placed in front of a chemical formula in an equation
  6. A change in matter that produces one or more new substances
  7. A rapid reaction between oxygen and fuel
  8. Any change that alters the form or appearance of a substance but does not make a substance into another substance
  9. When the reaction is complete, you have new substances
  10. When one element replaces another in a compound or when two elements in different compounds trade places

19 Clues: A reaction in which energy is absorbed • Matter is not allowed to enter or leave • A rapid reaction between oxygen and fuel • Anything that has mass and takes up space • The study of matter and how matter changes • The substances that you have in the beginning • Matter can enter from or escape to the surroundings • A reaction that releases energy in the form of heat • ...

CHEMISTRY 2018-06-02

CHEMISTRY crossword puzzle
Across
  1. horizontal rows
  2. gas from a solid or liquid at room temperature
  3. molecule with only two atoms
  4. speeds up the rate of a chemical reaction
  5. two atoms attracted to each other
  6. set volume
  7. different bonded atoms
  8. gas to liquid
  9. arrangement of elements into a table
  10. tiny particles of matter
  11. easily becomes a gas
  12. three dimensional arrangement of particles in a regular pattern
  13. chemical that helps chemical reactions
  14. solid to gas or gas to solid
Down
  1. pure substance, only one atom
  2. two or more bonded atoms
  3. solid to liquid
  4. particles collide when substances react
  5. metal damaged by the environment
  6. makes new chemicals
  7. single atom
  8. more then two different types of bonded atoms
  9. same bonded atoms
  10. dangerous gas
  11. chain of many simpler repeating units
  12. evaporate
  13. substances on the left side of a chemical equation
  14. result of a chemical reaction
  15. liquid to gas
  16. vertical columns

30 Clues: evaporate • set volume • single atom • dangerous gas • gas to liquid • liquid to gas • horizontal rows • solid to liquid • vertical columns • same bonded atoms • makes new chemicals • easily becomes a gas • different bonded atoms • two or more bonded atoms • tiny particles of matter • molecule with only two atoms • solid to gas or gas to solid • pure substance, only one atom • ...

Enzymes and Metabolism 2024-01-23

Enzymes and Metabolism crossword puzzle
Across
  1. A substance participating in a chemical reaction.
  2. The specific region of an enzyme where a substrate binds and the catalytic reaction takes place.
  3. The substance formed as a result of a chemical reaction.
  4. A metabolic process that builds complex molecules from simpler ones, requiring energy input.
  5. The reactant on which an enzyme acts, binding to the enzyme's active site.
  6. A chemical reaction or process that absorbs energy from its surroundings.
Down
  1. A compact, spherical protein structure with a three-dimensional shape.
  2. A substance that speeds up a chemical reaction by lowering the activation energy.
  3. The change in the shape of an enzyme's active site to better accommodate the substrate.
  4. A biological catalyst, usually a protein, that speeds up chemical reactions in living organisms.
  5. The breakdown of complex molecules into simpler ones, releasing energy.
  6. The minimum energy required for a chemical reaction to occur.
  7. A chemical reaction or process that releases energy to its surroundings.
  8. The alteration of a protein's shape, leading to loss of its function, often caused by changes in temperature or pH.

14 Clues: A substance participating in a chemical reaction. • The substance formed as a result of a chemical reaction. • The minimum energy required for a chemical reaction to occur. • A compact, spherical protein structure with a three-dimensional shape. • The breakdown of complex molecules into simpler ones, releasing energy. • ...

Arson and Explosives Crossword 2021-04-12

Arson and Explosives Crossword crossword puzzle
Across
  1. a high explosive that normally has to be detonated by a primary explosive.
  2. a mechanical device you can carry in your hand that will pick up compounds
  3. bombing incidents that confront police agencies today involve
  4. a chemical reaction accompanied by the absorption of heat
  5. transformation of a substance produced by the action of heat
  6. any material used to start or sustain a fire
  7. a violent release of energy caused by a chemical or nuclear reaction
  8. the minimum temperature at which a fuel spontaneouly ignites
  9. the amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit
  10. The loss of electrons from a substance involved in a redox reaction.
  11. fuse consisting of a tube or cord filled or saturated with combustible matter
Down
  1. the lowest temperature at which the vapor of a combustible liquid can be ignited in air
  2. a sudden outburst
  3. What most arsons are started with
  4. the type of chemical reaction fire is
  5. a very rapid oxidation reaction accompanied by the generation of a low-intensity pressure wave that can disrupt the surroundings
  6. substance reacts with oxygen to give heat and light
  7. a high explosive that is easily detonated by heat, shock, or friction
  8. Examples of this explosive type are :Dynamite, TNT, PETN and RDX
  9. a chemical reaction accompanied by the evolution of heat

20 Clues: a sudden outburst • What most arsons are started with • the type of chemical reaction fire is • any material used to start or sustain a fire • substance reacts with oxygen to give heat and light • a chemical reaction accompanied by the evolution of heat • a chemical reaction accompanied by the absorption of heat • ...

Arson and Explosives Crossword 2021-04-12

Arson and Explosives Crossword crossword puzzle
Across
  1. bombing incidents that confront police agencies today involve
  2. a chemical reaction accompanied by the absorption of heat
  3. transformation of a substance produced by the action of heat
  4. any material used to start or sustain a fire
  5. a violent release of energy caused by a chemical or nuclear reaction
  6. the minimum temperature at which a fuel spontaneouly ignites
  7. the amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit
  8. a mechanical device you can carry in your hand that will pick up compounds
  9. The loss of electrons from a substance involved in a redox reaction.
  10. an exertion of force
Down
  1. the lowest temperature at which the vapor of a combustible liquid can be ignited in air
  2. a sudden outburst
  3. What most arsons are started with
  4. the type of chemical reaction fire is
  5. a high explosive that normally has to be detonated by a primary explosive.
  6. a very rapid oxidation reaction accompanied by the generation of a low-intensity pressure wave that can disrupt the surroundings
  7. substance reacts with oxygen to give heat and light
  8. a high explosive that is easily detonated by heat, shock, or friction
  9. Examples of this explosive type are :Dynamite, TNT, PETN and RDX
  10. a chemical reaction accompanied by the evolution of heat

20 Clues: a sudden outburst • an exertion of force • What most arsons are started with • the type of chemical reaction fire is • any material used to start or sustain a fire • substance reacts with oxygen to give heat and light • a chemical reaction accompanied by the evolution of heat • a chemical reaction accompanied by the absorption of heat • ...

Chemistry Crossword 2024-11-21

Chemistry Crossword crossword puzzle
Across
  1. when 2 liquids are mixed to produce a solid
  2. example-something turns pink to clear
  3. ingredients for a chemical reaction
  4. occurs when bonds break and new bonds form
  5. symbols and numbers showing the types of elements and how many there are in a molecule
  6. the bottom of a liquid in a graduated cylinder
Down
  1. larger number in front of a chemical formula that tells how many molecules there are
  2. what you measure mass with
  3. energy change reaction that does not change the temperature
  4. a change that does not change the substance
  5. a reaction that releases heat
  6. what is made in a chemical reaction
  7. a reaction that absorbs heat
  8. smaller number in a chemical formula that tells how many atoms of that element there are in the molecule
  9. holds atoms together in a molecule
  10. usually happens in the form of a change in temperature
  11. bubbles tell us this is produced

17 Clues: what you measure mass with • a reaction that absorbs heat • a reaction that releases heat • bubbles tell us this is produced • holds atoms together in a molecule • what is made in a chemical reaction • ingredients for a chemical reaction • example-something turns pink to clear • occurs when bonds break and new bonds form • a change that does not change the substance • ...

Change in matter vocab - Kaleigh 2024-05-15

Change in matter vocab - Kaleigh crossword puzzle
Across
  1. Thermal energy transferred between two substance
  2. The amount of space occupied
  3. Occupies physical space & can be weighed
  4. A material formed by chemical elements
  5. A chemical reaction which stores heat
  6. A measure of the amount of matter an object contains
  7. A pure substance made up of only one atom
  8. Chemicals interacting to form new chemicals
  9. Study of the change of matter
  10. Substances being held and or held together
  11. Two or more atoms chemically bonded
Down
  1. A change of materials into another
  2. The smallest substance that can't be broken down
  3. Materials in a reaction that undergo a chemical change
  4. The form of the matter changes, not the kind of matter inside of it
  5. Measure of the average kinetic energy
  6. The action of molecules sticking together
  7. Speeds up a chemical reaction

18 Clues: The amount of space occupied • Speeds up a chemical reaction • Study of the change of matter • A change of materials into another • Two or more atoms chemically bonded • Measure of the average kinetic energy • A chemical reaction which stores heat • A material formed by chemical elements • Occupies physical space & can be weighed • The action of molecules sticking together • ...

physical science 2023-11-06

physical science crossword puzzle
Across
  1. a substance that is formed as the result of a chemical reaction
  2. a substance that takes part in and undergoes change during a reaction.
  3. reactants absorb heat energy
  4. the production of chemical compounds by reaction from simpler materials
  5. a reaction in which one element is substituted for another element
Down
  1. a substance that speeds up a chemical reaction
  2. an action performed or a feeling experienced in response to a situation or event.
  3. the release of heat
  4. the loss or removal of water
  5. a group of atoms bonded together
  6. a chemical process in which a substance reacts rapidly with oxygen and gives off heat
  7. the symbolic representation of a chemical reaction in the form of symbols and chemical

12 Clues: the release of heat • the loss or removal of water • reactants absorb heat energy • a group of atoms bonded together • a substance that speeds up a chemical reaction • a substance that is formed as the result of a chemical reaction • a reaction in which one element is substituted for another element • ...

Create a puzzle withCollision Theory and Chemical reaction 2025-02-02

Create a puzzle withCollision Theory and Chemical reaction crossword puzzle
Across
  1. Theory – The theory explaining how chemical reactions occur and why rates differ.
  2. Area – Affects reaction rate by exposing more reactant particles to collisions.
  3. – A reaction that absorbs energy.
  4. – A factor that increases molecular motion, leading to more frequent collisions.
  5. Energy – The minimum energy required for a reaction to occur.
  6. – The correct alignment of molecules during a collision for a reaction to occur.
  7. – A biological catalyst that speeds up biochemical reactions.
  8. Complex – The unstable arrangement of atoms at the peak of the reaction barrier.
  9. – Affects reaction rate by changing the number of reactant particles per unit volume.
Down
  1. Collision – A collision with proper energy and orientation to form products.
  2. – Increases reaction rate in gases by reducing space and increasing collisions.
  3. Collision – A collision that does not result in a reaction.
  4. – A substance that speeds up a reaction without being consumed. Orientation – The correct alignment of molecules during a collision for a reaction to occur.
  5. – The speed at which a chemical reaction proceeds.
  6. – The study of reaction rates.
  7. – The quantitative relationship between reactants and products in a reaction.
  8. State – The high-energy intermediate state of a reaction.
  9. Mechanism – A step-by-step sequence of elementary reactions.
  10. – A reaction that releases energy.
  11. – A substance that slows down or prevents a reaction.

20 Clues: – The study of reaction rates. • – A reaction that absorbs energy. • – A reaction that releases energy. • – The speed at which a chemical reaction proceeds. • – A substance that slows down or prevents a reaction. • State – The high-energy intermediate state of a reaction. • Collision – A collision that does not result in a reaction. • ...

Best word thing ever 2014-03-25

Best word thing ever crossword puzzle
Across
  1. 2 or more molecules or compounds
  2. the chemicals made by the equation
  3. particles of energy that comes out of the nucleus of an atom
  4. positive particles in an atom found in the nucleus
  5. a reaction with oxygen (burning)
  6. table an arrangement of all known elements in order of their size and structure
  7. of mass mass is always the same at the start and end of a reaction
  8. Change new chemical formed, not easily reversed
  9. 2 or more different atoms joined together
  10. Number number of protons plus neutrons in an atom
  11. smallest particle of matter that contains equal number of positive and…
  12. two or more atoms joined together
  13. when two smaller chemicals join in a reaction
Down
  1. of reaction how fast a reaction happens
  2. the chemicals used at the start of a reaction
  3. neutral particles in an atom found in the nucleus
  4. the solid produced when two liquids react
  5. equation shows what chemicals are at the start and the end of a reaction
  6. new chemicals are made
  7. when a chemical breaks apart into 2 or more chemicals in a reaction
  8. smaller negative particles orbiting the nucleus
  9. Property change in appearance, easily visible
  10. when chemicals swap partners in a reaction
  11. pure substances containing only one type of atom
  12. number number of protons in an atom

25 Clues: new chemicals are made • 2 or more molecules or compounds • a reaction with oxygen (burning) • two or more atoms joined together • the chemicals made by the equation • number number of protons in an atom • of reaction how fast a reaction happens • the solid produced when two liquids react • 2 or more different atoms joined together • ...

Chemistry: Types of Bonds and Reactions 2023-04-20

Chemistry: Types of Bonds and Reactions crossword puzzle
Across
  1. A chemical reaction where two compounds trade placements to create an insoluble solid.
  2. Atoms that are grouped with the same name because they have the same number of protons.
  3. A type of electron in the highest energy level that are involved in bonding.
  4. The charge of a cation.
  5. An ion formed by gaining valence electrons.
  6. A chemical reaction where a hydrocarbon is combined with oxygen to form carbon dioxide and water.
  7. Type of bond between an anion and cation.
  8. A column of elements with the same number of valence electrons on the Periodic Table.
  9. The charge of an anion.
  10. The charge on an Aluminum ion.
  11. The charge on an Oxygen ion (oxide ion).
  12. An ion formed by losing valence electrons.
Down
  1. A chemical reaction where low complexity chemicals combine to form a larger, more complex compound.
  2. A chemical reaction where a lower reactivity element is replaced in a compound by a higher reactivity element.
  3. Type of bond between metals freely sharing valence electrons.
  4. Protons - Electrons = _______________
  5. A chemical reaction where a single large compound breaks apart into smaller, less complex chemicals.
  6. A row representing an energy level on the Periodic Table.
  7. Type of bond between two neutral atoms sharing valence electrons.
  8. A full set of valence electrons.

20 Clues: The charge of a cation. • The charge of an anion. • The charge on an Aluminum ion. • A full set of valence electrons. • Protons - Electrons = _______________ • The charge on an Oxygen ion (oxide ion). • Type of bond between an anion and cation. • An ion formed by losing valence electrons. • An ion formed by gaining valence electrons. • ...

Y8 Chemical Reactions Crossword 2025-02-04

Y8 Chemical Reactions Crossword crossword puzzle
Across
  1. A chemical which can cause inflammation
  2. When a liquid turns into a gas. We can heat a solution gently to remove a solvent from it.
  3. A chemical which neutralises an acid
  4. The chemicals formed at the end of a reaction
  5. A chemical that speeds up the rate of a reaction but is not used up in the reaction.
  6. A surface which allows light (or other waves) to bounce off it
  7. combustion A chemical reaction which occurs when fuel is burnt with plenty of oxygen
  8. The chemicals needed to start a reaction
  9. A reaction which occurs when an acid is added to an alkali
  10. A solution that contains hydrogen and has a sharp sour taste
  11. Rings like a bell when struck
  12. Caused by excess acid being produced in the stomach and escaping to areas where cells are not protected from it.
  13. Can be bent into a shape
  14. A force that holds to atoms together
  15. scale A scale of numbers used to identify the strength of an acid or alkali.
  16. Treat acidic soil with lime to reduce the pH and ensure better growth of certain crops
  17. Can be drawn into wires
  18. When a solute dissolves in a solvent
  19. A chemical produced by neutralisation that has a metal part and a non-metal part.
  20. A reaction which gives out energy.
Down
  1. The process by which a solid forms, where the atoms or molecules are highly organised into a structure known as a crystal.
  2. When a substance gains oxygen
  3. A chemical reaction which occurs when a fuel reacts with oxygen
  4. indicator A type of indicator which can tell you the strength of an acid or alkali
  5. A reaction which takes in energy
  6. When iron has reacted with water and air
  7. Symbols and numbers showing which elements have been chemically bonded together to make the compound.
  8. A substance that changes colour depending on the solution it is in.
  9. When a metal becomes dull in colour due to a reaction with oxygen
  10. A compound that contains hydrogen and carbon only
  11. A symptom of indigestion; a pain in the chest due to excess acid in the gullet/oesophagus.
  12. A solution in which no more solute will dissolve.
  13. A mixture of gases that surround the Earth
  14. A solution that contains oxygen and hydrogen usually used in cleaning products
  15. A chemical which can damage living tissue
  16. combustion A chemical reaction which occurs when fuel is burnt with little oxygen
  17. variable The thing which is measured in an experiment
  18. variable The thing which is changed in an experiment
  19. A paper indicator for acids and alkalis

39 Clues: Can be drawn into wires • Can be bent into a shape • When a substance gains oxygen • Rings like a bell when struck • A reaction which takes in energy • A reaction which gives out energy. • A chemical which neutralises an acid • A force that holds to atoms together • When a solute dissolves in a solvent • A chemical which can cause inflammation • ...

Samantha Knapke Unit 2 2025-03-24

Samantha Knapke Unit 2 crossword puzzle
Across
  1. result of chemical reaction of enzyme
  2. what ataches to enzyme during chemical reaction
  3. energy used to move molecules
  4. diffusion of water across membrane
  5. made from tissue
  6. basic unit of mater
  7. made from organ
  8. likes water
  9. only lets some molecules through a cell
  10. where chemical reactions occur on enzyme
Down
  1. molecules move from close to apart naturally
  2. made from cells
  3. towers energy required to start chemical reaction
  4. transport moving molecules in cell with no energy used
  5. basic unit of life and made from organelles
  6. molecule with a water liking head and water hating tail
  7. made from organ system
  8. a cells shape was changed so substrate no longer fits
  9. made from molecules
  10. dislikes water
  11. made from atoms
  12. proteins that speed up metabolism

22 Clues: likes water • dislikes water • made from cells • made from organ • made from atoms • made from tissue • made from molecules • basic unit of mater • made from organ system • energy used to move molecules • proteins that speed up metabolism • diffusion of water across membrane • result of chemical reaction of enzyme • only lets some molecules through a cell • ...

AP Chemistry Vocabulary 3 2024-03-25

AP Chemistry Vocabulary 3 crossword puzzle
Across
  1. A chemical equation that shows the complete chemical formulas of reactants and products
  2. Acids capable of donating more than one proton per molecule in a chemical reaction
  3. A change in the state of matter without a change in its chemical composition
  4. Regions within an energy level where electrons are likely to be found
  5. The amount of heat required to raise the temperature of a unit mass of a substance by one degree Celsius
  6. Models that use electron pair repulsion theory to predict the three-dimensional shapes of molecules
  7. he energy possessed by a system due to its position or configuration
  8. Having a negative Gibb's Free Energy
  9. The quantitative study of reactants and products in chemical reactions
  10. Compounds with the same molecular formula but different structural arrangements
  11. Chemical reactions in which two or more substances combine to form a new compound
  12. The overall energy change that occurs during a chemical reaction:
  13. Electrons occupying the outermost energy level of an atom, determining its chemical properties
  14. The tendency of a substance to evaporate or change into a vapor, particularly at low temperatures
  15. The immediate environment and conditions affecting a chemical reaction or system
  16. A technique used to study the energy levels of atoms and molecules by analyzing the energy of emitted photons
  17. Describing forces or interactions that push objects away from each other
  18. A model used to describe the arrangement of electrons in an atom, with electrons occupying energy levels or shells
  19. A region in an atom where there is a high probability of finding an electron:
  20. Occurring naturally without external intervention
  21. A reaction where the rate of reaction is not influenced by the concentration of reactants, products, or catalysts
  22. The negative logarithm of the acid dissociation constant
  23. The property of the surface of a liquid that allows it to resist an external force
  24. The negative logarithm of the hydroxide ion concentration in a solution
  25. Component dissolved in a solvent to form a homogeneous mixture
  26. A chemical reaction that proceeds with a rate proportional to the concentration of two reactants
  27. A chemical reaction involving only one reactant molecule
  28. The measure of a fluid's internal friction and resistance to flow, often influenced by temperature and molecular size:
  29. A measure of a chemical cell's voltage under standard conditions
  30. Alloy in which some of the atoms of the main metal are replaced by atoms of other elements
  31. The branch of physical science that studies the relations between heat and other forms of energy
  32. A formula that indicates the types of atoms and the number of each type in a molecule
  33. Chemical reactions involving the transfer of electrons between reactants
  34. The speed at which a chemical reaction takes place
  35. The tendency of a species to gain electrons and be reduced during a redox reaction
  36. The change in enthalpy that accompanies the formation of one mole of a substance from its elements in their standard states
  37. The highest energy state along the reaction pathway, where reactant bonds are breaking and product bonds are forming
Down
  1. The repeating pattern of chemical and physical properties of elements in the periodic table
  2. Acids that only partially ionize in solution, resulting in a weak acidic behavior
  3. The sequence of individual chemical reactions that occur during the overall reaction process
  4. The state where the rates of dissolution and precipitation of a solute from a solution are equal
  5. A solid formed during a chemical reaction in a liquid solution
  6. The fundamental constant representing the relationship between the energy of a photon and its frequency
  7. The ratio of the concentrations of products to reactants in a chemical reaction at any point in time
  8. A unit used in chemistry to represent an amount of substance, approximately 6.022 × 10^23 entities
  9. Neutral subatomic particles found in the nucleus of an atom:
  10. The complex interplay of intermolecular forces and temperature that governs the pressure exerted by a substance's vapor
  11. The portion of the universe under investigation in a thermodynamic process
  12. The distance between successive crests, troughs, or any other adjacent points in a wave
  13. The rate at which products reform reactants in a chemical reaction
  14. A homogeneous mixture formed by dissolving one or more substances in a solvent
  15. The component of a solution that dissolves the solute
  16. A substance that has a constant composition and distinct properties
  17. A measure of the acidity or basicity of a solution
  18. A covalent bond formed by the overlap of p orbitals above and below the plane of bonded atoms
  19. Acid that can donate only one proton per molecule in a chemical reaction
  20. A covalent bond formed by the overlap of atomic orbitals along the internuclear axis
  21. A constant representing the product of the concentrations of the dissolved ions in a saturated solution of a sparingly soluble salt
  22. The measure of energy transferred when a force acts upon an object over a distance
  23. A species formed and consumed during the course of a chemical reaction, but does not appear in the overall reaction equation
  24. A theory that describes the behavior of electrons in molecules in terms of their wave-like properties
  25. Positively charged subatomic particles found in the nucleus of an atom
  26. A model used to describe the behavior of electrons in atoms and molecules based on the principles of quantum mechanics
  27. The state where no net transfer of heat occurs between a system and its surroundings
  28. The maximum amount of solute that can be dissolved in a solvent under specific conditions
  29. Acids that ionize completely in solution, producing a high concentration of H⁺ ions
  30. Packets of electromagnetic energy that carry light
  31. The substance upon which an enzyme acts in a chemical reaction
  32. The process of determining the concentration of a solution by reacting it with a solution of known concentration
  33. Groups of atoms held together by chemical bonds
  34. A solution of known concentration used to determine the concentration of another solution

71 Clues: Having a negative Gibb's Free Energy • Groups of atoms held together by chemical bonds • Occurring naturally without external intervention • A measure of the acidity or basicity of a solution • Packets of electromagnetic energy that carry light • The speed at which a chemical reaction takes place • The component of a solution that dissolves the solute • ...

Enzymes Crossword Puzzle 2024-04-25

Enzymes Crossword Puzzle crossword puzzle
Across
  1. Substances that start a chemical reaction and are transformed during it
  2. Substance that increases the rate of a chemical reaction without being consumed
  3. Building blocks of proteins
  4. Factor that affects enzyme activity
  5. The substance on which an enzyme acts
  6. Relates to an enzyme's ability to choose exactly one substrate
  7. Part of the enzyme where the substrate binds
  8. Tube that connects the throat to the stomach
Down
  1. Process in which proteins lose their structure due to external stress
  2. Juices Fluids in the stomach that aid in digestion
  3. Fluid in the mouth that contains enzymes like amylase
  4. Enzyme that helps digest carbohydrates
  5. Energy The minimum energy needed to start a chemical reaction
  6. Organ system responsible for breaking down food and absorbing nutrients
  7. Substances that result from a chemical reaction
  8. Enzyme that breaks down hydrogen peroxide into water and oxygen
  9. Process where substances are transformed into different substances
  10. Scale used to measure how acidic or basic a solution is
  11. Model explaining how enzymes and substrates fit together
  12. Large molecules composed of amino acids, essential for body functions
  13. Enzyme in the stomach that breaks down proteins in food
  14. Enzyme that breaks down fats
  15. Biological catalyst that speeds up chemical reactions in cells

23 Clues: Building blocks of proteins • Enzyme that breaks down fats • Factor that affects enzyme activity • The substance on which an enzyme acts • Enzyme that helps digest carbohydrates • Part of the enzyme where the substrate binds • Tube that connects the throat to the stomach • Substances that result from a chemical reaction • Juices Fluids in the stomach that aid in digestion • ...

Enzymes and Reactions 2025-09-30

Enzymes and Reactions crossword puzzle
Across
  1. abbreviation of 6 elements used to build most biotic life
  2. reaction that feels cold
  3. what the enzyme acts on
  4. special protein that speeds up a chemical reaction
  5. what is left after the chemical reaction
  6. building block of carbohydrates
  7. how energy is felt in many reactions
  8. section of the enzyme that binds to the substrate
Down
  1. building block of nucleic acid
  2. stops an enzyme from reacting with a substrate
  3. the amount of energy needed to start a chemical reaction
  4. reaction that feels hot
  5. building block of protein
  6. acid building block of lipids
  7. something that starts or speeds up a reaction

15 Clues: reaction that feels hot • what the enzyme acts on • reaction that feels cold • building block of protein • building block of nucleic acid • building block of carbohydrates • acid building block of lipids • how energy is felt in many reactions • what is left after the chemical reaction • something that starts or speeds up a reaction • ...

Chemistry Crossword 2024-11-21

Chemistry Crossword crossword puzzle
Across
  1. when 2 liquids are mixed to produce a solid
  2. example-something turns pink to clear
  3. ingredients for a chemical reaction
  4. occurs when bonds break and new bonds form
  5. symbols and numbers showing the types of elements and how many there are in a molecule
  6. the bottom of a liquid in a graduated cylinder
Down
  1. larger number in front of a chemical formula that tells how many molecules there are
  2. what you measure mass with
  3. energy change reaction that does not change the temperature
  4. a change that does not change the substance
  5. a reaction that releases heat
  6. what is made in a chemical reaction
  7. a reaction that absorbs heat
  8. smaller number in a chemical formula that tells how many atoms of that element there are in the molecule
  9. holds atoms together in a molecule
  10. usually happens in the form of a change in temperature
  11. bubbles tell us this is produced

17 Clues: what you measure mass with • a reaction that absorbs heat • a reaction that releases heat • bubbles tell us this is produced • holds atoms together in a molecule • what is made in a chemical reaction • ingredients for a chemical reaction • example-something turns pink to clear • occurs when bonds break and new bonds form • a change that does not change the substance • ...

Semester 1 Biology Crossword Puzzle 2021-01-26

Semester 1 Biology Crossword Puzzle crossword puzzle
Across
  1. A volcanic eruption would be what kind of limiting factor?
  2. When a molecule of a solvent passes through a membrane from a low concentration to a higher concentration it is known as what?
  3. What kind of environment would a cell have to be placed in, in order for water to leave the cell?
  4. If an organism has stable chemical and physical conditions, what is it considered to be at?
  5. A chemical reaction cannot occur because there is not any oxygen present. This chemical reaction would be considered what?
  6. A chemical reaction may not be able to occur if not enough energy is present. What is the energy called that is needed for a chemical reaction to occur?
  7. You throw a ball across the room. What human body system allowed you to move your arm in order to throw the ball?
  8. What kind of environment would a cell have to be placed in, in order for water to enter the cell?
  9. What reaction converts oxygen and glucose into water and carbon dioxide?
  10. In the chemical reaction that makes ammonia, iron helps speed up the reaction. In this situation, what does the iron act as?
  11. You are at a stop light that has just turned green so you put pressure on your gas pedal. Which human body system sent signals that allowed you to preform this action?
  12. two molecules of water sticking to each other would be considered what?
Down
  1. A chemical reaction occurs even though no oxygen is present. This chemical reaction would be considered what?
  2. The oxygen content in blood decreases to 50% when entering the right side of the heart, and increases to 95% when entering the left side. What is this is an example of?
  3. The availability of food would be what kind of limiting factor?
  4. A crab moving to a new beach with more resources would be considered what?
  5. The circulatory system in the human body is also what other kind of system?
  6. In the human body, what things combine to make proteins necessary for life?
  7. What reaction converts carbon dioxide and water into oxygen and glucose?
  8. A rabbit moving out of a forest because there are limited resources would be considered what?
  9. You run a mile, and start breathing heavily. Which human body system is allowing you to breathe in this way?
  10. A bee pollinating a flower would be classified as which type of relationship?
  11. When there is an equal concentration of molecules on each side of a membrane during osmosis it is referred to as what?
  12. Reaction occurring in the mitochondrial matrix that produces carbon dioxide, NADH, FADH2, and ATP.
  13. Starch, glycogen, and cellulose are examples of what?

25 Clues: Starch, glycogen, and cellulose are examples of what? • A volcanic eruption would be what kind of limiting factor? • The availability of food would be what kind of limiting factor? • two molecules of water sticking to each other would be considered what? • What reaction converts carbon dioxide and water into oxygen and glucose? • ...

U5 Vocab 2024-11-15

U5 Vocab crossword puzzle
Across
  1. When the parts of a compound equally makeup said compound
  2. The process that occurs when 2 or more molecules interact to form a new product
  3. Production of chemical compounds by reaction from simpler materials
  4. A substance that takes part in and undergoes change during a reaction
  5. Equations where there is only 1 chemical formula of reactants & products
Down
  1. Symbolic representations of chemical reactions in which the reactants & the products are in their chemical formula
  2. Multiple atoms in an ion
  3. Any system that is closed to the transfer of matter, the amount of matter stays constant
  4. Positive, negative, or neutral in a full octet
  5. A number placed in front of a chemical symbol or formula that show how many atoms of the substance are in the reaction
  6. Writing below the normal letters
  7. A substance that is present at the end of a chemical reaction
  8. Indicates the reaction from the reactants to the products
  9. How chemicals are written numerically
  10. Chemical naming

15 Clues: Chemical naming • Multiple atoms in an ion • Writing below the normal letters • How chemicals are written numerically • Positive, negative, or neutral in a full octet • When the parts of a compound equally makeup said compound • Indicates the reaction from the reactants to the products • A substance that is present at the end of a chemical reaction • ...

Y8 Chemical Reactions Crossword 2025-02-04

Y8 Chemical Reactions Crossword crossword puzzle
Across
  1. Can be bent into a shape
  2. Can be drawn into wires
  3. A chemical which can cause inflammation
  4. Symbols and numbers showing which elements have been chemically bonded together to make the compound.
  5. A symptom of indigestion; a pain in the chest due to excess acid in the gullet/oesophagus.
  6. Data (usually numbers) that can take any value
  7. A series of steps used to test a question
  8. Data that can be put into categories
  9. solution A solution in which no more solute will dissolve.
  10. A substance that changes colour depending on the solution it is in.
  11. A chemical that speeds up the rate of a reaction but is not used up in the reaction.
  12. A chemical which neutralises an acid
  13. A chemical which can damage living tissue
  14. of mass The mass of the reactants to equal to the mass of the products
  15. A force applied to an area caused by particles hitting the surface of an object
  16. variable The thing which is measured in an experiment
  17. When iron has reacted with water and air
  18. A chemical produced by neutralisation that has a metal part and a non-metal part.
  19. scale A scale of numbers used to identify the strength of an acid or alkali.
  20. The process by which a solid forms, where the atoms or molecules are highly organised into a structure known as a crystal.
  21. The chemicals needed to start a reaction
  22. Caused by excess acid being produced in the stomach and escaping to areas where cells are not protected from it.
  23. reaction A reaction which takes in energy
  24. When a substance gains oxygen
Down
  1. Treat acidic soil with lime to reduce the pH and ensure better growth of certain crops
  2. reaction A reaction which gives out energy
  3. combustion A chemical reaction which occurs when fuel is burnt with plenty of oxygen
  4. A reaction between an acid and a base to produce a salt plus water
  5. variable The thing which is changed in an experiment
  6. body temperature The temperature of the body at its’ core - in humans it is around 37.5oC
  7. indicator A type of indicator which can tell you the strength of an acid or alkali
  8. A group of different tissues working together to carry out a similar process
  9. A compound that contains hydrogen and carbon only
  10. A solution that contains oxygen and hydrogen usually used in cleaning products
  11. A chemical reaction which occurs when a fuel reacts with oxygen
  12. Rings like a bell when struck
  13. A solution that contains hydrogen and has a sharp sour taste
  14. combustion A chemical reaction which occurs when fuel is burnt with little oxygen
  15. incomplete combustion A chemical reaction which occurs when fuel is burnt with very little oxygen
  16. A mixture of gases that surround the Earth
  17. A surface which allows light (or other waves) to bounce off it
  18. The chemicals formed at the end of a reaction
  19. A reaction which gives out energy.
  20. A condition when the body becomes too cold and can no longer function properly
  21. When a solute dissolves in a solvent
  22. A force that holds to atoms together
  23. A type of indicator for acids and alkalis
  24. When a liquid turns into a gas. We can heat a solution gently to remove a solvent from it.
  25. A reaction which occurs when an acid is added to an alkali
  26. When a metal becomes dull in colour due to a reaction with oxygen

50 Clues: Can be drawn into wires • Can be bent into a shape • Rings like a bell when struck • When a substance gains oxygen • A reaction which gives out energy. • Data that can be put into categories • A chemical which neutralises an acid • When a solute dissolves in a solvent • A force that holds to atoms together • A chemical which can cause inflammation • ...

Chemical Economics C3 2015-04-27

Chemical Economics C3 crossword puzzle
Across
  1. ____ is an example of a drug made by Batch process
  2. In an ______ reaction, bonds are made
  3. Ammonia is an example of a chemical made by _____ process
  4. Is the mass of the product desired made as a percentage of all products made
  5. In an ______ reaction, bonds are broken
  6. To work out rate of reaction from a graph, you need to find the ______
  7. ________ is the sum of all relative atomic masses in a formula
  8. ______ surface area will increase the rate of reaction
  9. By increasing the _____, particles are more likely to frequently, successfully collide
  10. In an exothermic reaction, ____ energy is released
  11. _______ is used to tell if a chemical is pure or not
Down
  1. ______ is used to heat water by a liquid fuel
  2. It is important to use __________ to calculate energy transferred
  3. Diamond is used in jewellery because it is _____
  4. In a chemical reaction, mass is always ______
  5. Industries want to make reactions ____
  6. Making medicine is expensive because of the cost of _____ _____
  7. A _____ allotrope can be used to cage smaller molecules as a cancer drug
  8. An _____ is a different structural form of an element
  9. To work out percentage yield, you must divide the _____ yield by the desired yield
  10. _____ is used to make pencils
  11. For a chemical reaction to occur, there needs to a successful _____
  12. Continuous processes cost less money as it is _____

23 Clues: _____ is used to make pencils • In an ______ reaction, bonds are made • Industries want to make reactions ____ • In an ______ reaction, bonds are broken • ______ is used to heat water by a liquid fuel • In a chemical reaction, mass is always ______ • Diamond is used in jewellery because it is _____ • ____ is an example of a drug made by Batch process • ...

Unit 11 Redox Review 2023-05-11

Unit 11 Redox Review crossword puzzle
Across
  1. when an atom gains or loses electrons to have a charge
  2. the side of the cell where oxidation occurs
  3. a cell in which a spontaneous reaction turns chemical energy into electrical energy
  4. a reaction that requires additional energy in order for it to happen
  5. shows which elements were oxidized or reduced as well as indicates how many electrons were lost of gained
  6. the decomposition of a compound
  7. this part of the reaction will always have an oxidation state of zero
  8. a cell in which a battery is needed for a nonspontaneous reaction to turn electric energy into chemical energy
  9. a reaction that can happen on its own
  10. the losing of electrons in a reaction
  11. a reaction where you need to use table J to determine which metal will replace the metal in a compound
Down
  1. the only category of chemical reactions that is NOT a redox reaction
  2. the charge on an element
  3. location of the flow of electrons
  4. the ions that don't have a change in oxidation state
  5. the gaining of electrons in a reaction
  6. a reaction in which there is a simultaneous transfer of electrons
  7. the side of the cell where reduction occurs
  8. when the total charge of the reactants equals the total charge of the products
  9. allows ions to flow between half cells

20 Clues: the charge on an element • the decomposition of a compound • location of the flow of electrons • a reaction that can happen on its own • the losing of electrons in a reaction • the gaining of electrons in a reaction • allows ions to flow between half cells • the side of the cell where oxidation occurs • the side of the cell where reduction occurs • ...

Y7 Chemistry 2026-03-17

Y7 Chemistry crossword puzzle
Across
  1. A scale from 0–14 that shows how acidic or alkaline a substance is
  2. change : When a substance changes colour during a reaction
  3. A substance that usually does not react like metals
  4. A change that forms new substances and is usually not reversible
  5. A solid that forms when two liquids react
  6. A reaction that cannot be changed back
  7. A substance made when an acid reacts with a base
  8. A reaction between an acid and an alkali to make salt and water
  9. A gas needed for burning and many reactions
  10. A substance that burns to release energy
  11. When a reaction makes bubbles of gas
  12. A substance with pH less than 7 that can react with metals
  13. A chemical that changes colour to show pH
Down
  1. A process where substances change to form new substances
  2. A reaction where a substance burns in oxygen
  3. A substance with pH more than 7 that dissolves in water
  4. Energy that is given out or taken in during a reaction
  5. A rise or fall in temperature during a reaction
  6. A substance that often reacts with oxygen or acid
  7. A starting substance in a chemical reaction
  8. A change where no new substance is made (e.g. melting)
  9. A new substance made in a chemical reaction
  10. A reaction where oxygen is added to a substance

23 Clues: When a reaction makes bubbles of gas • A reaction that cannot be changed back • A substance that burns to release energy • A solid that forms when two liquids react • A chemical that changes colour to show pH • A gas needed for burning and many reactions • A starting substance in a chemical reaction • A new substance made in a chemical reaction • ...

Reaction of the Storyboard 2014-01-21

Reaction of the Storyboard crossword puzzle
Across
  1. increasing substance
  2. reaction separation of substance
  3. equation symbolic representation
  4. displacement reaction type of salt reaction
  5. contains water
  6. undergoes a change
  7. reaction purposeful reaction
Down
  1. reaction type of burning
  2. of Conservation of Mass relating to chemical reactions
  3. displacement reaction type of oxidation
  4. molecule composed of 2 atoms
  5. happens suddenly
  6. substance

13 Clues: substance • contains water • happens suddenly • undergoes a change • increasing substance • reaction type of burning • reaction purposeful reaction • molecule composed of 2 atoms • reaction separation of substance • equation symbolic representation • displacement reaction type of oxidation • displacement reaction type of salt reaction • ...

Chemistry Crossword Puzzle 2022-11-18

Chemistry Crossword Puzzle crossword puzzle
Across
  1. a chemical reaction of a powerful release when oxygen is added
  2. a substance made up of two or more elements
  3. a number that comes after an elemental symbol
  4. replacement a chemical reaction where one reactant exchanges one of its elements with another reactant
  5. a charged atom
  6. an element that you start with in a reaction
  7. an element that isn't naturally found by itself in nature
Down
  1. a chemical reaction where one or more elements is broken down into one or more elements
  2. a number you place in front of a reactant; used to balance equations
  3. a chemical reaction where two reactants exchange one element
  4. a bond between two non-metal atoms
  5. the resulting substance of a reaction
  6. a chemical reaction where the reactants combine to create a brand new product
  7. a bond between a non-metal atom and a metal atom

14 Clues: a charged atom • a bond between two non-metal atoms • the resulting substance of a reaction • a substance made up of two or more elements • an element that you start with in a reaction • a number that comes after an elemental symbol • a bond between a non-metal atom and a metal atom • an element that isn't naturally found by itself in nature • ...

Chemistry First Six Weeks Crossword 2024-09-18

Chemistry First Six Weeks Crossword crossword puzzle
Across
  1. - A scale used to measure the acidity or basicity of a solution.
  2. - A substance that accepts protons (H⁺ ions) or donates hydroxide ions (OH⁻) in a chemical reaction.
  3. - A group of atoms bonded together, representing the smallest unit of a chemical compound.
  4. - A measure of an atom's ability to attract and hold onto electrons in a chemical bond.
  5. - The substance in which a solute is dissolved to form a solution.
  6. - A homogeneous mixture of two or more substances.
  7. - A substance formed as a result of a chemical reaction.
  8. - The speed at which a chemical reaction occurs.
  9. - The distance from the nucleus of an atom to the outermost electron shell.
  10. - The calculation of reactants and products in chemical reactions based on the balanced equation.
  11. - A substance formed when two or more elements are chemically bonded together.
  12. - A substance that dissociates into ions when dissolved in water, conducting electricity.
  13. - A substance that donates protons (H⁺ ions) in a chemical reaction.
  14. - A covalent bond where electrons are shared equally between two atoms.
  15. - A substance that undergoes a chemical change in a reaction.
  16. - The branch of chemistry that studies the heat changes that occur during chemical reactions.
Down
  1. - A measure of the concentration of a solution, defined as moles of solute per liter of solution.
  2. - The force that holds atoms together in a molecule or compound.
  3. - The substance that is dissolved in a solvent to form a solution.
  4. - Electrons in the outermost shell of an atom that are involved in chemical bonding.
  5. - A substance that increases the rate of a chemical reaction without being consumed in the process.
  6. - The basic unit of a chemical element, consisting of a nucleus and electrons.
  7. - A type of chemical bond where electrons are transferred from one atom to another, creating ions.
  8. - A type of chemical bond where atoms share electrons.
  9. - A tabular arrangement of elements based on their atomic number and chemical properties.
  10. - Atoms of the same element with different numbers of neutrons and different mass numbers.
  11. - An atom or molecule that has gained or lost one or more electrons, resulting in a charged particle.
  12. - A pure substance consisting entirely of one type of atom.
  13. - A covalent bond in which electrons are not shared equally between the two atoms.
  14. - The energy required to remove an electron from an atom or ion in its gaseous state.

30 Clues: - The speed at which a chemical reaction occurs. • - A homogeneous mixture of two or more substances. • - A type of chemical bond where atoms share electrons. • - A substance formed as a result of a chemical reaction. • - A pure substance consisting entirely of one type of atom. • - A substance that undergoes a chemical change in a reaction. • ...

Changes in matter 2025-04-24

Changes in matter crossword puzzle
Across
  1. Substance that speeds up a chemical reaction
  2. atoms connected
  3. chemical components
  4. amount of matter
  5. a substance
  6. scientific study of composition structure
  7. chemical substance
  8. transferring heat
  9. atoms combine
Down
  1. attraction of molecules
  2. amount of energy transfer
  3. 3D space
  4. smallest unit matter can be divided into
  5. substances converted
  6. average kinetic energy
  7. stuff,takes up space
  8. elements combine
  9. a pure substance

18 Clues: 3D space • a substance • atoms combine • atoms connected • amount of matter • elements combine • a pure substance • transferring heat • chemical substance • chemical components • substances converted • stuff,takes up space • average kinetic energy • attraction of molecules • amount of energy transfer • smallest unit matter can be divided into • scientific study of composition structure • ...

S2I6 E 1&2 Chemical Reactions Vocabulary 2025-04-25

S2I6 E 1&2 Chemical Reactions Vocabulary crossword puzzle
Across
  1. A chemical change in which one element replaces a second element in a compound.
  2. A chemical equation that does not indicate the relative amounts of the reactants and products.
  3. For a typical chemical reaction, the mass of the products is always equal to the mass of the reactants.
  4. For a typical chemical reaction, energy is neither created nor destroyed.
  5. A chemical change in which two or more substances react to form a single new substance.
  6. Bonds are broken when molecules collide with enough energy.
  7. Reactions that release net energy into the surroundings.
  8. A compound composed of hydrogen and carbon.
  9. A chemical change in which an element or a compound reacts with oxygen.
Down
  1. Lists the relative reactivities of elements within groups, such as metals and halogens.
  2. The speed at which reactants become products.
  3. Substances present before a reaction.
  4. A chemical change involving an exchange of positive ions between two compounds.
  5. The numbers in front of terms used to balance and equation so it obeys the las of conservation of mass.
  6. A chemical change in which a single compound breaks down into two or more products.
  7. The energy stored in the chemical bonds of a substance.
  8. Reactions that absorb net energy from the surroundings.
  9. Substances present after a reaction.

18 Clues: Substances present after a reaction. • Substances present before a reaction. • A compound composed of hydrogen and carbon. • The speed at which reactants become products. • The energy stored in the chemical bonds of a substance. • Reactions that absorb net energy from the surroundings. • Reactions that release net energy into the surroundings. • ...

Chemistry of Life 2024-01-25

Chemistry of Life crossword puzzle
Across
  1. the distribution of electrical charge over atoms that are bonded.
  2. water molecules bond with other water molecules to produce surface tension.
  3. a substance that dissolves another substance.
  4. the result of a chemical reaction
  5. substances that participate in a chemical reaction.
  6. polymer composed of amino acids linked by peptide bonds.
  7. a state in which opposing forces are balanced.
  8. molecule that makes up proteins; composed of carbon, hydrogen, oxygen, and nitrogen.
  9. a substance being dissolved.
Down
  1. molecule composed of carbon, hydrogen, and oxygen which can include sugars or starches.
  2. molecule that carries genetic information which is used to make proteins.
  3. the minimum quantity of energy required for a chemical reaction to begin.
  4. single molecules
  5. fatty acid
  6. large, carbon-based molecule formed by monomers.
  7. the bond between a hydrogen atom and an oxygen or nitrogen atom.
  8. substance that decreases activation energy and increases reaction rate in a chemical reaction.

17 Clues: fatty acid • single molecules • a substance being dissolved. • the result of a chemical reaction • a substance that dissolves another substance. • a state in which opposing forces are balanced. • large, carbon-based molecule formed by monomers. • substances that participate in a chemical reaction. • polymer composed of amino acids linked by peptide bonds. • ...

Chemistry of Life 2024-01-25

Chemistry of Life crossword puzzle
Across
  1. fatty acid
  2. the result of a chemical reaction
  3. the minimum quantity of energy required for a chemical reaction to begin.
  4. a substance that dissolves another substance.
  5. water molecules bond with other water molecules to produce surface tension.
  6. molecule that makes up proteins; composed of carbon, hydrogen, oxygen, and nitrogen.
  7. single molecules
Down
  1. molecule composed of carbon, hydrogen, and oxygen which can include sugars or starches.
  2. a state in which opposing forces are balanced.
  3. a substance being dissolved.
  4. substance that decreases activation energy and increases reaction rate in a chemical reaction.
  5. substances that participate in a chemical reaction.
  6. molecule that carries genetic information which is used to make proteins.
  7. the distribution of electrical charge over atoms that are bonded.
  8. the bond between a hydrogen atom and an oxygen or nitrogen atom.
  9. polymer composed of amino acids linked by peptide bonds.
  10. large, carbon-based molecule formed by monomers.

17 Clues: fatty acid • single molecules • a substance being dissolved. • the result of a chemical reaction • a substance that dissolves another substance. • a state in which opposing forces are balanced. • large, carbon-based molecule formed by monomers. • substances that participate in a chemical reaction. • polymer composed of amino acids linked by peptide bonds. • ...