chemical reaction Crossword Puzzles

Chemical Reactions Vocabulary Assignment 2024-11-07

Chemical Reactions Vocabulary Assignment crossword puzzle
Across
  1. 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
  2. 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.
  3. reaction Are those which absorb energy from the surroundings and result in a net decrease in temperature
  4. Loss of Electrons
  5. reaction: A chemical reaction that releases energy in the form of light or heat
  6. A substance produced by a living organism that acts as a catalyst to bring about a specific biochemical reaction
  7. A substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
  8. reaction A process in which one or more substances, the reactants, are converted to one or more different substances called the products
  9. 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
  10. Chemical Equation: is a chemical equation with the same number of atoms of each element on both sides of the arrow
Down
  1. Equation 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.
  2. Mass: Mass in grams of one mole of a substance
  3. A substance that takes part in and undergoes change during a reaction
  4. Is a substance that is formed as the result of a chemical reaction.
  5. The amount of a substance that contains 6.02 x 1023 particles of that substance
  6. of reaction The speed at which reactants are converted in products
  7. Gain of electrons
  8. of Conservation of Mass 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.

18 Clues: Loss of Electrons • Gain of electrons • Mass: Mass in grams of one mole of a substance • of reaction 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 • ...

Chemistry Crossword 2016-05-12

Chemistry Crossword crossword puzzle
Across
  1. compound-any member of a large class of gaseous, liquid, or solid chemical compounds whose molecules contain carbon
  2. substance that has a molecular structure consisting chiefly or entirely of a large number of similar units bonded together
  3. The substances that result from this recombination of atoms.
  4. chain reaction- a series of nuclear fissions each initiated by a neutron produced in a preceding fission.
  5. electron-an electron that is associated with an atom, and that can participate in the formation of a chemical bond
  6. theory- Explains why chemical reactions occur and why reaction rates differ for different reactions.
  7. chemical compound that conducts electricity by changing into ions when melted or dissolved into a solution
  8. The abundance of a constituent divided by the total volume of a mixture
  9. polymer-manmade out of raw materials that are found in nature.
  10. or relating to the emission of ionizing radiation or particles
  11. substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
  12. reaction- A process that involves the rearrangement of the molecular or ionic structure of a substance
  13. compound of hydrogen and carbon
  14. figure expressing the acidity or alkalinity of a solution.
  15. production of chemical compounds by reaction from simpler materials.
  16. minor component in a solution, dissolved in the solvent.
  17. energy- the minimum quantity of energy that the reacting species must possess in order to undergo a specified reaction
  18. Reaction- a chemical reaction that is accompanied by the absorption of heat, or an organism that generates heat to maintain its temperature.
  19. a homogeneous mixture composed of two or more substances
  20. branch of chemistry or biochemistry concerned with measuring and studying the rates of reactions.
  21. basic unit of a chemical element.
  22. atom or molecule with a net electric charge due to the loss or gain of one or more electrons
  23. ionic compound that results from the neutralization reaction of an acid and a base
Down
  1. bonding- the complete transfer of valence electrons between atoms
  2. bonding- A chemical bond where atoms share electron pairs.
  3. a chemical reaction that releases energy by light or heat
  4. a substance that takes part in and undergoes change during a reaction.
  5. A process in which atoms of the same or different elements rearrange themselves to form a new substance
  6. process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons to form ions
  7. changing of one chemical element into anotherccc
  8. instrument for detecting and measuring electricity, especially as an indication of the ionization of air by radioactivity
  9. particles-a helium nucleus emitted by some radioactive substances, originally regarded as a ray.
  10. group of atoms bonded together, representing the smallest fundamental unit of a chemical compound
  11. to dissolve other substances
  12. chemical property referring to the ability for a given substance, the solute, to dissolve in a solvent
  13. molecule that can be bonded to other identical molecules to form a polymer.
  14. the process of purification of a substance or a form.
  15. a quantity collected from a sample or batch of a substance in a fractionating separation process

38 Clues: to dissolve other substances • compound of hydrogen and carbon • basic unit of a chemical element. • changing of one chemical element into anotherccc • the process of purification of a substance or a form. • minor component in a solution, dissolved in the solvent. • a homogeneous mixture composed of two or more substances • ...

Vocab-sid 2024-11-07

Vocab-sid crossword puzzle
Across
  1. Equation: 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.
  2. The amount of a substance that contains 6.02 x 1023 particles of that substance
  3. Loss of Electrons
  4. Chemical Equation: is a chemical equation with the same number of atoms of each element on both sides of the arrow
  5. Mass: Mass in grams of one mole of a substance
  6. A substance that takes part in and undergoes change during a reaction
  7. of reaction: The speed at which reactants are converted in products
  8. 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
  9. Is a substance that is formed as the result of a chemical reaction.
Down
  1. Gain of electrons
  2. reaction: A process in which one or more substances, the reactants, are converted to one or more different substances called the products
  3. reaction: A chemical reaction that releases energy in the form of light or heat
  4. 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.
  5. A substance produced by a living organism that acts as a catalyst to bring about a specific biochemical reaction
  6. of Conservation of Mass: 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. reaction: Are those which absorb energy from the surroundings and result in a net decrease in temperature
  8. A substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
  9. 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

18 Clues: Gain of electrons • Loss of Electrons • Mass: Mass in grams of one mole of a substance • of reaction: 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 • ...

Mr Albert puzzle 2024-11-04

Mr Albert puzzle crossword puzzle
Across
  1. Equation: 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.
  2. The amount of a substance that contains 6.02 x 1023 particles of that substance
  3. Loss of Electrons
  4. Chemical Equation: is a chemical equation with the same number of atoms of each element on both sides of the arrow
  5. Mass: Mass in grams of one mole of a substance
  6. A substance that takes part in and undergoes change during a reaction
  7. of reaction: The speed at which reactants are converted in products
  8. 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
  9. Is a substance that is formed as the result of a chemical reaction.
Down
  1. Gain of electrons
  2. reaction: A process in which one or more substances, the reactants, are converted to one or more different substances called the products
  3. reaction: A chemical reaction that releases energy in the form of light or heat
  4. 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.
  5. A substance produced by a living organism that acts as a catalyst to bring about a specific biochemical reaction
  6. of Conservation of Mass: 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. reaction: Are those which absorb energy from the surroundings and result in a net decrease in temperature
  8. A substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
  9. 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

18 Clues: Gain of electrons • Loss of Electrons • Mass: Mass in grams of one mole of a substance • of reaction: 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 • ...

Chemical Reactions and Photosynthesis Crossword 2023-02-07

Chemical Reactions and Photosynthesis Crossword crossword puzzle
Across
  1. A type of sugar that plants create in the process of photosynthesis
  2. The chemical found in the leaves of plants that captures the sun's energy
  3. chemical __________ tells you the reactants, the products and the proportions of each substance present
  4. A reaction that releases heat
  5. A reaction that absorbs heat
  6. The substances that form as a result of the reaction
  7. The small number that tells you how many atoms you have in a chemical formula
Down
  1. The law of _________________ of mass states that mass is never gained or lost in a chemical reaction
  2. An endothermic chemical reaction that plants use to create their own food
  3. The large number at the beginning of a chemical formula
  4. A product in the process of photosynthesis
  5. The substances that exist before the reaction takes place
  6. ___________ reaction: A process that produces chemical change
  7. A reactant in the process of photosynthesis

14 Clues: A reaction that absorbs heat • A reaction that releases heat • A product in the process of photosynthesis • A reactant in the process of photosynthesis • The substances that form as a result of the reaction • The large number at the beginning of a chemical formula • The substances that exist before the reaction takes place • ...

Rutvik Movva 10-O: Crossword on Different Types of Chemical Equations 2024-05-01

Rutvik Movva 10-O: Crossword on Different Types of Chemical Equations crossword puzzle
Across
  1. when a decomposition reaction takes place in the presence of electricity
  2. one or group of atoms of a compound is replaced by another atom or group of atoms
  3. A chemical equation where the number of atoms of each element on the reactant side is equal to the number of atoms on the product side
  4. Two compounds exchange their ions to form new compounds
  5. A single substance decomposes to give two or more substances
  6. When a decomposition reaction takes place in the presence of heat
  7. when a decomposition reaction takes place in the presence of light
  8. It is the shorthand notation of actually occuring chemical reaction in terms of symbols, formulae and the ratio of the number of various reactants and products
  9. the oxidation of oils and fats in food resulting in bad taste and smell
  10. Reaction in which insoluble salts are formed
Down
  1. when heat is given out or released during a chemical equation
  2. it is a process by which one or more substances react to form new substances with different properties
  3. when a substance looses oxygen atoms in a chemical reaction
  4. The eating up of metals as a result of their exposure to air,moisture,water,etc.
  5. Two of more substances combine to form a single product
  6. A chemical equation where the name of the elements and compounds are written
  7. when heat is absorbed during a chemical reaction
  8. when a substance gains oxygen during a chemical reaction

18 Clues: Reaction in which insoluble salts are formed • when heat is absorbed during a chemical reaction • Two compounds exchange their ions to form new compounds • Two of more substances combine to form a single product • when a substance gains oxygen during a chemical reaction • when a substance looses oxygen atoms in a chemical reaction • ...

Chemical Reactions 2021-12-02

Chemical Reactions crossword puzzle
Across
  1. The formula for hydrochloric acid
  2. Basic unit of matter
  3. A single kind of matter that is pure and has a specific set of properties.
  4. (of a chemical reaction or compound) occurring or formed with absorption of heat
  5. The reactants in a photosynthesis reaction.
  6. any substance that has a definite composition
  7. Chemical formula for glucose.
  8. A substance that decreases the hydrogen ion concentration in a solution.
Down
  1. A substance produced in a chemical reaction
  2. A chemical substance that is present at the start of a chemical reaction
  3. the process by which one or more substances change to produce one or more different substances
  4. A group of atoms bonded together
  5. Chemical formula for sodium hydroxide
  6. change A change in matter that produces one or more new substances
  7. Chemical Reaction in which energy is primarily given off in the form of heat

15 Clues: Basic unit of matter • Chemical formula for glucose. • A group of atoms bonded together • The formula for hydrochloric acid • Chemical formula for sodium hydroxide • A substance produced in a chemical reaction • The reactants in a photosynthesis reaction. • any substance that has a definite composition • change A change in matter that produces one or more new substances • ...

Chemical 2022-03-18

Chemical crossword puzzle
Across
  1. change- A change that alters the form or appearance of substance but that does not make the substance into another substance.
  2. equation- A short, easy way to show a chemical reaction, using symbols instead of words.
  3. Anything that has mass and takes up space.
  4. When two or more elements or compounds combine to make a more complex substance.
  5. When the reaction is complete, you have new substances.
  6. system- When matte can enter from or escape to the surroundings.
  7. A solid that forms from solution during a chemical reaction.
  8. of matter- A principle that states that during a chemical reaction, matter is not created or destroyed.
Down
  1. A material that releases energy when it burns.
  2. reaction- A change in matter that produces one or more new substances.
  3. system- When matter is not allowed t enter or leave.
  4. A number placed in front of a chemical formula in a equation
  5. property- A characteristic of a substance that describes its ability to change into other substances.
  6. In contrast to a synthesis reaction.
  7. Substances you have at the beginning.
  8. A rapid reaction between oxygen and a substance.
  9. property- A characteristic of a substance that can be observed without changing.
  10. reaction- A reaction that releases energy in a form of heat.
  11. When one element replaces another in a compound or when two elements in a different compounds trade places.
  12. The study of matter and how matter changes.
  13. reaction- A reaction in which energy is absorbed.

21 Clues: In contrast to a synthesis reaction. • Substances you have at the beginning. • Anything that has mass and takes up space. • The study of matter and how matter changes. • A material that releases energy when it burns. • A rapid reaction between oxygen and a substance. • reaction- A reaction in which energy is absorbed. • ...

Chemical Reactions 2023-12-08

Chemical Reactions crossword puzzle
Across
  1. The law of conservation of _____ says that matter is not created or destroyed during a chemical reaction
  2. exothermic reactions feel ______ to the touch
  3. a chemical reaction where energy is absorbed into the system
  4. endothermic reactions feel ____ to the touch
  5. Mass of the reactants ______ the mass of the products
  6. The numbers that are added in front of formulas to balance a chemical equation
Down
  1. Energy is stored within chemical ______, which may be broken during a reaction
  2. A chemical formula is said to be ________ when there are the same number of each element on both sides of the equation
  3. In an endothermic reaction the products have ____ energy compared to the reactants
  4. The substances that were formed during a chemical reaction
  5. In a chemical equation, the reactants and products are separated by an _____
  6. a chemical reaction where energy is released from the system
  7. in an exothermic reaction, the products have ____ energy compared to the reactants
  8. The substances that are present at the beginning of a reaction

14 Clues: endothermic reactions feel ____ to the touch • exothermic reactions feel ______ to the touch • Mass of the reactants ______ the mass of the products • The substances that were formed during a chemical reaction • a chemical reaction where energy is released from the system • a chemical reaction where energy is absorbed into the system • ...

Equilibrium Review Crossword 2019-05-13

Equilibrium Review Crossword crossword puzzle
Across
  1. the abundance of a substance in a mixture
  2. the equilibrium law; to predict the effect of a change in conditions on a chemical equilibrium
  3. substances that contribute to a chemical reaction
  4. an intermediate state that is formed during conversion of reactants
  5. harmonious adjustment of different elements or parts of a reaction
  6. the total area an object occupies
  7. a substance which enables a chemical reaction
  8. results of chemical reactions
Down
  1. measure of heat from something as measured in degrees
  2. the minimum energy required to start a reaction
  3. the speed at which a chemical reaction proceeds
  4. the theory used to predict the rates of chemical reactions
  5. when reactions occur by breaking and rearranging bonds
  6. the state in which a reaction reaches the activated complex
  7. the amount of space in a container

15 Clues: results of chemical reactions • the total area an object occupies • the amount of space in a container • the abundance of a substance in a mixture • a substance which enables a chemical reaction • the minimum energy required to start a reaction • the speed at which a chemical reaction proceeds • substances that contribute to a chemical reaction • ...

Chemistry Crossword 2017-11-08

Chemistry Crossword crossword puzzle
Across
  1. Substances that help a reaction speed faster. They re not consumed during a chemical reaction.
  2. Use atomic number
  3. the average mass of an element in atomic mass units (AMU)
  4. A new substance produced in a chemical reaction between reactants
  5. When 2 or more substances react to form a new substance. It is irreversible.
  6. An element is defined by number of protons it has.
  7. An experiment where all reactants and all products of a chemical reaction are accounted for.
  8. When a material changes state but does not change composition(makeup). It is reversible.
  9. A reaction that takes place when two or more substances react to form new substances
  10. Group 2 elements in the periodic table; their reactivity is not as strong as that of the alkali metals
  11. combo of symbols that represent a compound; the formula identifies the elements in the compound and the amount of each element
  12. Use atomic number
  13. An experiement in which one or more products of a chemical reaction can escape.
Down
  1. Group 17 elements in the periodic table;the most reactive non-metals
  2. Most reactive family in the period table of elements
  3. Substance that reacts with another substance or substances in a chemical reaction to create new substances with different properties.
  4. A slow chemical change that occurs when oxygen in the air reacts with metal. _________ is a chemical reaction in which the metal is decomposed.
  5. Pure substance formed when at least one metal and one non-metal combine
  6. Mass number minus atomic number
  7. A chemical reaction that occurs when oxygen reacts with a substance to form a new substance and gives off energy.
  8. An atom that has become electrically charged because it has lost or gained electrons; a positive ion is an atom that has lost one or more electrons;a negative ion is an atom that has gained one or more electrons
  9. A chemical reaction that takes place in the cells of your body. Food (glucose) reacts with oxygen to produce energy,water, and carbon dioxide.
  10. When non-metals combine, they produce a pure substance called a molecule, or molecular compound.
  11. Group 18 elements in the periodic table;the most stable and nonreactive elements

24 Clues: Use atomic number • Use atomic number • Mass number minus atomic number • An element is defined by number of protons it has. • Most reactive family in the period table of elements • the average mass of an element in atomic mass units (AMU) • A new substance produced in a chemical reaction between reactants • ...

joe 2023-11-25

joe crossword puzzle
Across
  1. A mixture where particles do not settle over time.
  2. Substance that is dissolved in a solution.
  3. System Allows matter to enter or leave.
  4. Reaction Releases energy.
  5. A mixture where particles settle over time.
  6. Substances at the beginning of a chemical reaction.
  7. Substance that does the dissolving in a solution.
  8. Combination of different substances where each substance retains its own properties.
Down
  1. Measure of how much solute can dissolve in a solvent.
  2. Change Alters the appearance without changing the composition.
  3. System Does not allow matter to enter or leave.
  4. Breaks down complex substances into simpler ones.
  5. Change Alters the composition of a substance.
  6. Reaction Absorbs energy.
  7. Measure of how fast a reaction occurs.
  8. Substances at the end of a chemical reaction.
  9. Process in which solute particles mix evenly in a solvent.
  10. of Conservation of Mass Mass is neither created nor destroyed in a chemical reaction.

18 Clues: Reaction Absorbs energy. • Reaction Releases energy. • Measure of how fast a reaction occurs. • Substance that is dissolved in a solution. • System Allows matter to enter or leave. • A mixture where particles settle over time. • Change Alters the composition of a substance. • Substances at the end of a chemical reaction. • ...

macromolecules and enzymes 2023-09-13

macromolecules and enzymes crossword puzzle
Across
  1. fat, oil, and waxes
  2. animals store sugar in this macromolecule
  3. the energy required to initiate a chemical reaction
  4. a single subunit of a polymer
  5. the molecules that are created in a chemical reaction
  6. the molecules that enter into a chemical reaction
  7. a lipid that does NOT have any double bonds
  8. the number of levels of organization in a protein
  9. the type of macromolecule that is made of monosaccharides
Down
  1. the main structural carbohydrate in celery, wood, and paper
  2. the monomer of nucleic acids
  3. a reactant in a chemical reaction
  4. a substance that lowers activation energy
  5. DNA
  6. C6H12O6
  7. the monomer of proteins
  8. plant stores sugar in this macromolecule
  9. combines with glycerol to form lipids
  10. a protein catalyst

19 Clues: DNA • C6H12O6 • a protein catalyst • fat, oil, and waxes • the monomer of proteins • the monomer of nucleic acids • a single subunit of a polymer • a reactant in a chemical reaction • combines with glycerol to form lipids • plant stores sugar in this macromolecule • a substance that lowers activation energy • animals store sugar in this macromolecule • ...

Are You Basic? 2023-01-04

Are You Basic? crossword puzzle
Across
  1. Bond formed when electrons are transferred between metals and nonmetals
  2. The results of a chemical reaction
  3. This type of reaction: AB + C -> AC + B
  4. Word used to describe a chemical reaction in which the reactants absorb heat energy from the surroundings to form products
  5. Electrons in the outer shell of an atom
  6. The concept that the same amount of matter exists before and after a chemical reaction; matter is neither created nor destroyed
  7. The substances that participate in a chemical reaction
  8. The maximum amount of a substance that will dissolve in a given amount of solvent at a specified temperature
Down
  1. Bond formed when electrons are shared between nonmetals
  2. Sour-tasting compound, with a pH less than 7
  3. The tendency of atoms to prefer to have eight electrons in their outer shell
  4. Word used to describe a chemical reaction in which the reactants release heat energy
  5. This type of reaction: AB + CD -> AC + BD
  6. This type of reaction: AB -> A+B
  7. Measures the relative acidity and alkalinity of a solution
  8. This type of reaction: A+B -> AB
  9. Bitter-tasting compound, with a pH greater than 7

17 Clues: This type of reaction: AB -> A+B • This type of reaction: A+B -> AB • The results of a chemical reaction • This type of reaction: AB + C -> AC + B • Electrons in the outer shell of an atom • This type of reaction: AB + CD -> AC + BD • Sour-tasting compound, with a pH less than 7 • Bitter-tasting compound, with a pH greater than 7 • ...

Thermochemistry Vocab 2023-04-28

Thermochemistry Vocab crossword puzzle
Across
  1. chemical reaction in which heat is absorbed
  2. heat absorbed when a liquid vaporizes
  3. movement of atoms
  4. heat transferred by movement of heated liquid
  5. heat required to melt or freeze a substance
  6. scale for measuring temperature where zero degrees Celsius is freezing
  7. energy content in food
  8. the study of energy changes that occur during chemical reactions
  9. heat energy
Down
  1. energy due to its motion
  2. measurement of heat changes
  3. heat transferred by waves or particles
  4. materials that react with each other in a chemical reaction
  5. energy required to raise temperature of one gram by one degree Celsius
  6. chemical reaction in which heat is given off
  7. heat transferred by touching
  8. unit of work or energy
  9. substance formed at the end of a chemical reaction
  10. base unit of thermodynamic temperature measurement

19 Clues: heat energy • movement of atoms • unit of work or energy • energy content in food • energy due to its motion • measurement of heat changes • heat transferred by touching • heat absorbed when a liquid vaporizes • heat transferred by waves or particles • chemical reaction in which heat is absorbed • heat required to melt or freeze a substance • ...

Chapter 7 vocabulary 2021-12-17

Chapter 7 vocabulary crossword puzzle
Across
  1. New substances formed as a result of a chemical reaction
  2. The energy stored in chemical bonds
  3. Numbers that appear before a formula in a chemical equation to show the relative proportions of each reactant and product
  4. A chemical reaction that releases energy to its surroundings
  5. A chemical reaction in which a compound breaks down into two or more simpler substances
  6. A chemical reaction in which one element takes the place of another element in a compound
  7. A chemical reaction that absorbs energy from its surroundings
Down
  1. reaction A chemical reaction in which two or more substances react to form a single substance
  2. A chemical reaction in which two compounds exchange positive ions and form two new compounds
  3. A representation of a chemical reaction in which the reactants and products are expressed as formulas
  4. An amount of a substance that contains approximately 6.02x10’23 particles of the substance
  5. The mass of one mole of the substance
  6. A substance that undergoes change in a chemicalreactant

13 Clues: The energy stored in chemical bonds • The mass of one mole of the substance • A substance that undergoes change in a chemicalreactant • New substances formed as a result of a chemical reaction • A chemical reaction that releases energy to its surroundings • A chemical reaction that absorbs energy from its surroundings • ...

Science Final Review 2025-12-15

Science Final Review crossword puzzle
Across
  1. acronym to help us remember indicators of a chemical reaction
  2. materials or substances that occur on Earth and are formed solely through natural processes
  3. any characteristic of a substance that can be observed without changing the substance
  4. a chemical reaction that occurs in a closed system, where no matter can enter or leave the system
  5. man-made products from natural resources
  6. something that shows a chemical reaction has happened
  7. resources which will run out or not be replenished in our lifetimes
  8. anything that takes up space and has mass
Down
  1. any characteristic of a substance that may be observed when it undergoes a chemical change
  2. a small number written below and to the right of a chemical symbol to show how many atoms of that element are in a molecule
  3. a change to a substance in which some of its properties change, but no new substance is formed
  4. a number placed in front of a chemical formula to show how many molecules of that substance are involved
  5. a chemical reaction that occurs in an open system, where matter can enter or escape from the system
  6. substance that starts a chemical reaction and undergoes a chemical change to form new substances
  7. new substance or material that is formed as the result of a chemical reaction
  8. when substances mix or react to form completely new substances with different properties
  9. a resource of which there is an endless supply because it can be replenished
  10. the smallest unit of matter

18 Clues: the smallest unit of matter • man-made products from natural resources • anything that takes up space and has mass • something that shows a chemical reaction has happened • acronym to help us remember indicators of a chemical reaction • resources which will run out or not be replenished in our lifetimes • ...

PS Unit 2: Chemical Reactions 2025-04-03

PS Unit 2: Chemical Reactions crossword puzzle
Across
  1. A state of matter similar to gas but consisting of positively charged ions and free electrons.
  2. The formation of gas bubbles in a liquid by a chemical reaction.
  3. A characteristic of a substance that can be observed or measured without changing its identity.
  4. A state of matter characterized by particles arranged such that their shape and volume are relatively stable.
  5. A solid that forms and settles out of a liquid mixture.
  6. A chemical reaction in which one element is substituted for another element in a compound.
  7. A state of matter without a definite shape or volume.
  8. A substance that is formed as the result of a chemical reaction.
  9. A chemical reaction that occurs when a substance reacts with oxygen, releasing energy in the form of light or heat.
  10. A process or reaction that absorbs energy in the form of heat.
  11. A characteristic of a substance that describes its ability to change into different substances.
  12. The process of changing or causing something to change from one form to another.
  13. The speed at which a chemical reaction proceeds.
  14. A chemical reaction where one substance breaks down into two or more simpler substances.
Down
  1. Anything that has mass and takes up space.
  2. A substance that takes part in and undergoes change during a reaction.
  3. A chemical reaction in which two or more simple substances combine to form a more complex product.
  4. The digits in a measurement that are known with certainty plus the first digit that is uncertain.
  5. A state of matter with a definite volume but no definite shape.
  6. A principle stating that if a system at equilibrium is subjected to a change in concentration, temperature, or pressure, the system will adjust to partially counteract the effect of the change.
  7. A chemical reaction where two compounds exchange ions or bonds to form different compounds.
  8. A change that produces matter with a different composition than the original matter.
  9. A change in a substance that does not involve a change in the identity of the substance.
  10. A process or reaction that releases energy in the form of heat.
  11. The mass of a substance per unit volume.

25 Clues: The mass of a substance per unit volume. • Anything that has mass and takes up space. • The speed at which a chemical reaction proceeds. • A state of matter without a definite shape or volume. • A solid that forms and settles out of a liquid mixture. • A process or reaction that absorbs energy in the form of heat. • ...

Science Chemical Reactions Crossword. 2025-06-24

Science Chemical Reactions Crossword. crossword puzzle
Across
  1. A reaction that involves oxygen and produces heat
  2. The reaction containing two compounds exchanging ions
  3. The number written in front of a formula in equations
  4. A solid formed in a solution reaction
  5. The substance formed in a chemical reaction
  6. The Term for a substance that speeds up reactions
  7. The substances present at the start of a reaction
  8. A sign of a chemical change
  9. The reaction involving both acids and bases
  10. The law that states matter is not created or destroyed
  11. The term for a chemical equation with equal atoms on both sides
Down
  1. The process of gaining electrons
  2. The color change in a reaction
  3. A type of bond is formed by electrons sharing
  4. The reaction that releases heat
  5. The reaction that absorbs heat
  6. The minimum energy needed to start a reactions
  7. A type of bond involving electrons transfers
  8. The reaction that occurs in batteries
  9. The reaction that breaks a compound into parts
  10. The reaction that combines two or more substances
  11. The reaction that goes both forward and backwards
  12. A gas that is commonly produced in metal-acid reactions
  13. The process of losing electrons
  14. The term for substances that resist changes in pH

25 Clues: A sign of a chemical change • The color change in a reaction • The reaction that absorbs heat • The reaction that releases heat • The process of losing electrons • The process of gaining electrons • A solid formed in a solution reaction • The reaction that occurs in batteries • The substance formed in a chemical reaction • The reaction involving both acids and bases • ...

Biomolecules Vocabulary 2024-05-03

Biomolecules Vocabulary crossword puzzle
Across
  1. A biomolecule mainly used in long-term energy storage and cell membrane structure.
  2. Substances that combine and change in a chemical reaction to create a new substance.
  3. A large molecule made by joining monomers.
  4. A molecule produced by a living organism.
  5. Proteins that speed up chemical reactions in our bodies.
  6. A building block of a larger molecule.
  7. A substance that either starts or speeds up a chemical reaction.
  8. The monomers of lipids. They are also a long chain of hydrocarbons.
  9. A molecule made up of nitrogen with basic properties.
  10. A biomolecule used for short-term energy storage.
Down
  1. The monomers of proteins.
  2. The substance that enzymes react to.
  3. A sugar with five carbon atoms. It is used in the sugar-phosphate backbone of DNA.
  4. Biomolecules that store genetic information.
  5. A part of an enzyme where substrate joins and catalysis occurs.
  6. A chemical reaction where water is used to decompose another compound.
  7. Biomolecules made up of amino acids.
  8. A nonmetal element with the atomic number 6. This element is used in all biomolecules.
  9. A substance formed when different substances combine in a chemical reaction.
  10. The least amount of energy needed to cause a chemical reaction.

20 Clues: The monomers of proteins. • The substance that enzymes react to. • Biomolecules made up of amino acids. • A building block of a larger molecule. • A molecule produced by a living organism. • A large molecule made by joining monomers. • Biomolecules that store genetic information. • A biomolecule used for short-term energy storage. • ...

Energy & Enzymes 2022-03-07

Energy & Enzymes crossword puzzle
Across
  1. the minimum amount of energy required to start a chemical reaction
  2. changing the shape and working ability of an enzyme by altering the temperature, pH, ion strength, or solubility of the environment it in
  3. reaction a process by which one or more starting substances gets converted into one or more different substances
  4. the ending material(s) or substance after a chemical reaction has taken place
  5. The number in front of a chemical formula that shows how many molecules or units react or are formed in a chemical reaction
  6. the starting material(s) in a chemical reaction; found before the arrow in chemical equation
Down
  1. a molecule that sits in the activesite of an enzyme reducing the rate of biochemical reactions
  2. A reaction that releases energy in the form of heat; the products have less energy than the reactants
  3. an abbreviated way of showing how many atoms and their amounts in a molecule
  4. an abbreviated way of showing a chemicalreaction
  5. a number written smaller, lower, and behind a chemical symbol; it tells how many atoms of that chemical are found in the molecule
  6. a substance that speeds up a chemical reaction but is not altered or used up in the process; lowers the activation energy of a reaction
  7. A chemical reaction in which the products have more energy than the reactants making the overall reaction feel colder
  8. the energy molecule used by the cell

14 Clues: the energy molecule used by the cell • an abbreviated way of showing a chemicalreaction • the minimum amount of energy required to start a chemical reaction • an abbreviated way of showing how many atoms and their amounts in a molecule • the ending material(s) or substance after a chemical reaction has taken place • ...

Chemistry of Living Things UG1 checkpoint 2022-08-09

Chemistry of Living Things UG1 checkpoint crossword puzzle
Across
  1. a substance that speeds up a chemical reaction, or lowers the temperature or pressure needed to start one, without itself being consumed during the reaction
  2. the starting materials in a chemical reaction
  3. a process in which one or more reactants are converted to one or more different substances
  4. a chemical reaction that produces heat (it feels hot to touch)
  5. the burning of a fuel, where it reacts with oxygen to create heat and light
  6. the physical breakdown of large pieces of food into smaller pieces (eg. chewing)
  7. a substance with a pH greater than 7
  8. a change when no new substance is formed
  9. a substance with a pH less than 7
  10. a chemical reaction that absorbs thermal energy from its surroundings (it feels cold to touch)
  11. the amount of a substance in a defined space
  12. another name for an upset stomach
  13. a form of energy (thermal)
Down
  1. a substance with a pH of 7
  2. a base which neutralises excess acid in the stomach
  3. using acids and enzymes to break down the food into simpler nutrients that can be absorbed and used by the body cells
  4. the process by which food, in the form of sugar (glucose), is transformed into energy within cells
  5. a substance that is formed as the result of a chemical reaction
  6. the measure of how much exposed area a solid object has
  7. a change when a new substance is formed
  8. the speed at which a chemical reaction takes place

21 Clues: a substance with a pH of 7 • a form of energy (thermal) • a substance with a pH less than 7 • another name for an upset stomach • a substance with a pH greater than 7 • a change when a new substance is formed • a change when no new substance is formed • the amount of a substance in a defined space • the starting materials in a chemical reaction • ...

GCSE Y9 Chemistry Vocabulary Chemical reactions 2025-06-03

GCSE Y9 Chemistry Vocabulary Chemical reactions crossword puzzle
Across
  1. The mass of a mole of atoms of an element
  2. The reaction that occurs when heat is applied to a compound, causing it to breakdown into its different chemical constituents
  3. The splitting of an ionic compound using electricity. The electric current is passed through a substance, causing chemical reactions at the electrodes and the decomposition of the materials.
  4. The reactant that is completely used up since it limits the amount of products formed
  5. A reaction involving the loss of oxygen. Reduction is the gain of electrons.
  6. The amount of the product that comes from a chemical reaction
  7. The difference between the sum of the energy needed to break bonds and the reactants and the sum of the energy released when bonds and the product of our is called the ___________ of the reaction
  8. A chemical reaction would be more reactive element displaces, a less reactive element from its compound
  9. The formula that shows the actual number of atoms in each element in one molecule of a substance
  10. The law of conservation of mass states that no atoms are lost or made during the chemical reaction; the mass of the products equals the mass of the reactants
  11. In an exothermic reaction, the energy release from forming new bonds is greater than the energy needed to _________ existing bonds
  12. The positive terminal
  13. The mass of a molecule of a substance; for example, a molecule of sodium chloride, NaCl, has a relative formula mass of 58.5; one mole of sodium chloride has a mass of 58.5 grams
  14. How quickly a reaction occurs
  15. A reaction that releases heat
  16. In an endothermic reaction, the energy energy needed to break existing bonds is ____________ then the energy release from forming new bonds
  17. A state where the rates of forward and reverse reactions are equal
  18. The minimum energy needed for a reaction to start. The energy needed for particles to collide in order for a successful reaction to occur.
  19. The maximum amount of products that could be produced from the given reactants, assuming a complete reaction takes place
  20. Metals less reactive than carbon can be extracted from their oxides by reduction with carbon
  21. A process by which substances are changed into new substances
Down
  1. The equal volumes of all gases taken at the same temperature and pressure must contain the same number of molecules
  2. The amount of a substance actually made in a chemical reaction
  3. A reaction involving gain of oxygen. Oxidation is the loss of electrons.
  4. The water in crystals that contain molecules of water bound up in the crystal structure
  5. yield The amount of a substance predicted to be made from a chemical reaction
  6. The formula that shows the simplest ratio of the atoms present
  7. The reaction when an acid and a bass react to form water and salt
  8. Reaction profiles can be used to show the relative energies of reactants and products, the activation energy, and the overall energy change of reaction
  9. A reaction that absorbs heat
  10. The actual yield from a chemical reaction divided by the predicted yield 10 times by 100
  11. The reaction that occurs when heat is applied to a compound, causing it to break down into its different chemical constituents
  12. Metals are arranged in order of their reactivity in a reactivity series. This can be used to predict products from reactions.
  13. A unit for the amount of a substance; approximately 6×10 to the 23rd exponent particles
  14. The negative terminal
  15. A principal describing how equilibrium shifts and response to changes and conditions
  16. The substance formed from a chemical reaction

37 Clues: The positive terminal • The negative terminal • A reaction that absorbs heat • How quickly a reaction occurs • A reaction that releases heat • The mass of a mole of atoms of an element • The substance formed from a chemical reaction • The amount of the product that comes from a chemical reaction • A process by which substances are changed into new substances • ...

KINETICS & HESS'S LAW 2022-02-04

KINETICS & HESS'S LAW 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 a chemical 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 • ...

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 a chemical 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 • ...

Chapter 3 Glossary 2016-10-23

Chapter 3 Glossary crossword puzzle
Across
  1. A simple sugar formed by photosynthesis and used in respiration
  2. rain Rain that has acids such as nitric acid and sulphuric acid dissolved in it
  3. A green coating of cooper hydroxide that is produced when copper
  4. A rapid reaction with oxygen that releases energy in the form of heat and/or light
  5. A chemical reaction that absorbs energy
  6. A reaction that uses oxygen to release energy stored in glucose
  7. Simple written description of what is happening in a reaction
  8. Highly combustible chemicals, petrol is a mixture of hydrocarbons
  9. hydrated iron oxide
  10. A process in which chemicals move, caused by different concentrations of the chemical
  11. A biological catalysts that speeds up a reaction
Down
  1. sink A term used to describe materials that store carbon in their structures. Plants and animals can be thought of as carbon sinks
  2. The breakdown of metals due to their reaction with other chemicals
  3. A chemical reaction in which glucose is broken down, releasing energy for use by the plant or animal
  4. A reaction of an acid with a base, forming a salt and water
  5. Chemicals produced in a chemical reaction. They are written on the right-hand side of the arrow
  6. A chemical reaction that rereleases energy
  7. A way of protecting aluminium from corrosion, by deliberately creating a layer of aluminium oxide over it

18 Clues: hydrated iron oxide • A chemical reaction that absorbs energy • A chemical reaction that rereleases energy • A biological catalysts that speeds up a reaction • A reaction of an acid with a base, forming a salt and water • Simple written description of what is happening in a reaction • A simple sugar formed by photosynthesis and used in respiration • ...

cHEMISTRY CROSSWORD 2017-11-08

cHEMISTRY CROSSWORD crossword puzzle
Across
  1. change that is irreversible
  2. substance made up of one type of matter had has unique properties
  3. a chemical reaction that occurs when oxygen in the air reacts with a substance to form a new substance and gives off energy
  4. chemical combination of two or more elements in a specific ratio
  5. system a material system that keeps the reaction just the reaction
  6. mixture of two or more pure substances that looks like one
  7. to absorb heat
  8. change that is reversible
  9. ability to dissolve
  10. system a material system in which mass or energy can be lost to or gained
  11. the weight of a substance
  12. nonmetal and nonmetal
  13. the things that are being used for the chemical reaction
Down
  1. to release heat
  2. what are made after mixing multiple reactants
  3. cloudy mixture that cannot be separated
  4. anything on the periodic table. Made up of one type of element
  5. a substance that makes a chemical reaction go faster
  6. it is a slow chemical change that occurs when oxygen decomposes metal
  7. cloudy mixture that can be separated
  8. the ability to pound and roll metal into sheets
  9. metal and nonmetal
  10. amount of mass in a given volume

23 Clues: to absorb heat • to release heat • metal and nonmetal • ability to dissolve • nonmetal and nonmetal • change that is reversible • the weight of a substance • change that is irreversible • amount of mass in a given volume • cloudy mixture that can be separated • cloudy mixture that cannot be separated • what are made after mixing multiple reactants • ...

ryan stasa-chapter 13 2016-10-12

ryan stasa-chapter 13 crossword puzzle
Across
  1. the process by which a reactant loses one or more elctrons
  2. a measure of the acidity of a solution
  3. an ion made by adding a proton to a water molecule
  4. a substance that donates hydrogen atoms
  5. a reaction between an acid and a base
  6. in a chemical reaction when there is a gain of ebergy
  7. a substance that accepts hydrogen atoms
  8. any substance that increases the time of a chemical reaction
Down
  1. an atom made by adding a proton to a water molecule
  2. the minimum amount of energy required in order for a chemical reaction to happen
  3. a rapid exothermic oxidation
  4. in a chemical reaction when there is a release of energy
  5. the new material formed in a chemical reaction
  6. the reacting substances of a chemical reaction
  7. the process by which a reactant gains one or more electrons

15 Clues: a rapid exothermic oxidation • a reaction between an acid and a base • a measure of the acidity of a solution • a substance that donates hydrogen atoms • a substance that accepts hydrogen atoms • the new material formed in a chemical reaction • the reacting substances of a chemical reaction • an ion made by adding a proton to a water molecule • ...

Chemical reactions 2022-03-01

Chemical reactions crossword puzzle
Across
  1. what reacts in a chemical reactions.
  2. Representation of chemical reaction
  3. The ___________ greenhouse effect takes place when the amount of gasses increase significantly.
  4. The proportion of chemical ecuations it is given by coefficients ___________.
  5. One reagent gives two products.
  6. It is produced when gasses are emited into the atmosphere and react with water vapour.
  7. The weight of a molecule.
Down
  1. If we mix bleach with mouthwash it is produced a change _______.
  2. It's a factor that can increase the rate of a chemical reaction.
  3. Several reagents give one product.
  4. what is formed in a chemical reaction.
  5. combination of atoms.
  6. Mixing vinegar and bicarbonate generates a
  7. The _______ layer absorbs ultraviolet radiation, which is harmful to health.
  8. In a chemical reaction there can be light and energy _________.
  9. Scientific who demonstrated mass conservation.
  10. Chemical product that we use to clean.

17 Clues: combination of atoms. • The weight of a molecule. • One reagent gives two products. • Several reagents give one product. • Representation of chemical reaction • what reacts in a chemical reactions. • what is formed in a chemical reaction. • Chemical product that we use to clean. • Mixing vinegar and bicarbonate generates a • Scientific who demonstrated mass conservation. • ...

POK 1 2017-03-15

POK 1 crossword puzzle
Across
  1. An ion with a positive electric charge. An atom which has lost one or more electrons.
  2. A way of describing the composition of a substances using symbols and numbers
  3. substances that undergo chemical change
  4. The way chemists write down chemical reactions
  5. reaction A chemical reaction that takes in energy
  6. reaction A chemical reaction that gives off energy
  7. compound A compound made up of ions.
  8. The measure of acidity or alkalinity in a substance.
  9. energy The energy needed for a reaction to occur
  10. An ion with a negative electric charge. An atom which has gained one or more electrons.
  11. compound A compound made up of molecules the molecules consist of atoms that are linked by sharing electrons.
Down
  1. A substance which alters the speed of a chemical reaction but remains chemically unchanged itself at the end of the reaction.
  2. A charged particle an atom or group of atoms which has lost or gained electrons
  3. the substances formed as a result of a chemical change
  4. A solid which forms and settles in a solution
  5. A substance which contains hydrogen that can be replaced by a metal in solution it turns litmus red.
  6. The removal of acidity or alkalinity in a substance.
  7. The smallest particle of a compound which can normally exist by itself and still have the properties of that substance.
  8. A substance containing two or more elements which have been chemically combined.
  9. A substance which reacts with an acid to form a salt and water.

20 Clues: compound A compound made up of ions. • substances that undergo chemical change • A solid which forms and settles in a solution • The way chemists write down chemical reactions • energy The energy needed for a reaction to occur • reaction A chemical reaction that takes in energy • reaction A chemical reaction that gives off energy • ...

Unit 5: Kinetics 2023-05-17

Unit 5: Kinetics crossword puzzle
Across
  1. an expression that describes the rate of change of the reactants in terms of their concentration
  2. a _____________________ distribution graph that shows the probability distribution of particle speed for a given temperature
  3. _____________ order reactions have rate constants with units 1/s.
  4. the spontaneous decomposition of an unstable nucleus
  5. an elementary step involving two molecules
  6. the particular arrangement of elementary steps to produce a specific overall reaction
  7. reactions that are composed of a single step that comprise more complex reactions
  8. the elementary step that describes the rate law of a reaction.
Down
  1. the change in concentration of a reactant or product per unit time
  2. time required for some quantity to reduce its size by 50%
  3. a chemical species that is created and used in a single complex reaction
  4. positive change in enthalpy, thermal energy is absorbed into a system
  5. a measurement of the total heat in a system
  6. a species formed in a chemical reaction; found on the right of the arrow in a chemical equation
  7. the amount of energy required to produce a reaction
  8. a chemical species that enables a reaction to proceed at an increased rate
  9. negative change in enthalpy, thermal energy is released into a system
  10. an elementary step involving a single molecule
  11. ______________ theory states that atoms must collide at the correct orientation with enough energy to react
  12. a substance that is consumed in a chemical reaction; found on the left of the arrow in a chemical equation

20 Clues: an elementary step involving two molecules • a measurement of the total heat in a system • an elementary step involving a single molecule • the amount of energy required to produce a reaction • the spontaneous decomposition of an unstable nucleus • time required for some quantity to reduce its size by 50% • ...

T1 Science Final Crossword Puzzle 2016-12-01

T1 Science Final Crossword Puzzle crossword puzzle
Across
  1. Cloud of dust and gas
  2. Sun ends its cycle here
  3. Long wave
  4. Fusions stop
  5. Energy before reaction is the same amount after reaction
  6. Expands 100 times its size
  7. Where our sun is at right now
  8. Absorbed chemical reaction
  9. Weighs 1 tsp
  10. Atoms combining
  11. Microwave radiation
Down
  1. Short wave
  2. Nothing can escape it
  3. Atoms splitting
  4. Small, white dying star
  5. Clumps start to form
  6. Organized chart of radiations
  7. Still generates energy
  8. Star explodes
  9. Released chemical reaction

20 Clues: Long wave • Short wave • Fusions stop • Weighs 1 tsp • Star explodes • Atoms splitting • Atoms combining • Microwave radiation • Clumps start to form • Cloud of dust and gas • Nothing can escape it • Still generates energy • Sun ends its cycle here • Small, white dying star • Expands 100 times its size • Absorbed chemical reaction • Released chemical reaction • Organized chart of radiations • ...

Chemistry Crossword 2018-11-06

Chemistry Crossword crossword puzzle
Across
  1. Pure substance formed when at least one metal and one non-metal combine
  2. French chemist who created a nomenclature for naming compounds
  3. Number of protons in the nucleus of one atom of an element
  4. Columns in the periodic table labelled 1-18
  5. Pure substance formed when non-metals combine
  6. Rows in the periodic table labelled 1-7
  7. New materials produced by the reaction
  8. Substances that help a reaction proceed faster
  9. Chemical reaction that absorbs heat energy
  10. Mass of one atom of an element calculated from the total number of protons, neutrons, and electrons of that atom; measured in amu
  11. Workplace Hazardous Material Information System
Down
  1. A table in which the elements are organized by their physical and chemical properties
  2. Solid or gas; solids are dull, brittle elements
  3. Anything that has mass and occupies space
  4. Chemical reaction that takes place in the cells in your body
  5. Below
  6. Have metallic and non-metallic properties
  7. Chemical reaction that releases heat energy
  8. Chemical reaction that occurs when oxygen reacts with a substance to form a new substance and give off energy
  9. More than two elements combine
  10. Pure substance that cannot be broken down into other substances; substance only made up of one type of atom
  11. Materials at the start of a reaction
  12. Shiny, malleable, and ductile
  13. Slow chemical change that occurs when oxygen in air reacts with a metal

24 Clues: Below • Shiny, malleable, and ductile • More than two elements combine • Materials at the start of a reaction • New materials produced by the reaction • Rows in the periodic table labelled 1-7 • Anything that has mass and occupies space • Have metallic and non-metallic properties • Chemical reaction that absorbs heat energy • Chemical reaction that releases heat energy • ...

Biochemistry Part 2 2023-12-01

Biochemistry Part 2 crossword puzzle
Across
  1. CHO (2:1 of H:O)
  2. chain of amino acids
  3. many monosaccharides combined together (cellulose is an example)
  4. one of the building blocks of lipids that combines with 3 fatty acids to form triglycerides
  5. monomers of proteins
  6. CHON; the most versatile of all biomolecules; does the most different kinds of jobs for a cell
  7. a protein that speeds up the rate of a chemical reaction by lowering the activation energy
  8. the starting chemicals ("ingredients") of a chemical reaction
  9. the ending chemicals of a chemical reaction
  10. CHO (no 2:1 of H:O); polymers such as fats and oils; made by the combination of triglyceride and fatty acids
  11. the spot on an enzyme where the substrate binds
Down
  1. the reactants in an enzyme-catalyzed reaction
  2. a chemical reaction in which the reactants start with more energy than the products ("energy out")
  3. 2 monosaccharides combined together by dehydration synthesis
  4. the process of combining 2 or more monomers together by removing a water molecule
  5. a chemical reaction in which the products end up with more energy than the reactants ("energy in")
  6. the process of breaking down a polymer by inserting a water molecule
  7. monomer of carbohydrate (glucose is an example)
  8. CHONP; DNA, RNA, and ATP
  9. acids 3 of these combine with glycerol to form triglycerides (lipid)
  10. monomer of nucleic acid; made of 5-carbon sugar, phosphate group(s), and a nitrogenous base
  11. the amount of energy required to trigger a chemical reaction

22 Clues: CHO (2:1 of H:O) • chain of amino acids • monomers of proteins • CHONP; DNA, RNA, and ATP • the ending chemicals of a chemical reaction • the reactants in an enzyme-catalyzed reaction • monomer of carbohydrate (glucose is an example) • the spot on an enzyme where the substrate binds • 2 monosaccharides combined together by dehydration synthesis • ...

Science chapter 5 2022-05-04

Science chapter 5 crossword puzzle
Across
  1. energy-the minimum amount of energy required to start a chemical equation
  2. to form a new substance
  3. reaction-is any process with an increase in the enthalpy H of the system
  4. change-changes affecting the form of a substance
  5. when compounds break down into similar products
  6. reaction-reaction for which the overall standard enthalpy change is negative
  7. species formed from chemical reactions
  8. amount of a substance in a given volume
  9. system-A closed system is a physical system that does not allow transfer of matter in or out of the system
  10. a number placed in front of a chemical formula in an equation
  11. when 2 or more elements or compounds combine to make a more complex substance
  12. substance to be deposited in solid form from a solution
  13. of conservation of mass-the mass of the system must remain constant over time
Down
  1. substance that takes part in and undergoes change during a reaction
  2. catalysts that help reactions occur at body temperature
  3. equation-the symbolic representation of a chemical reaction in the form of symbols and formulae
  4. one element replaces another in a compound or if 2 elements in different compounds trade places
  5. change-occurs when a substance combines with
  6. system-a material system in which mass or energy can be lost to or gained from the environment
  7. increases-the reaction rate by lowering the activation energy needed
  8. material used to decrease the rate of a chemical reaction

21 Clues: to form a new substance • species formed from chemical reactions • amount of a substance in a given volume • change-occurs when a substance combines with • when compounds break down into similar products • change-changes affecting the form of a substance • catalysts that help reactions occur at body temperature • substance to be deposited in solid form from a solution • ...

science vocabulary 2021-03-26

science vocabulary crossword puzzle
Across
  1. the process by which one or more substances change to produce one or more different substances
  2. a substance that undergoes change during a chemical reaction
  3. the simplest unit of chemical compound that can exist
  4. an insoluble solid form by a chemical reaction
  5. the smallest particle of an element
  6. a single substance either an element or a compound definite composition and properties
  7. a substance formed by two or more substances which are chemically bonded during the chemical reaction
  8. materials made from one or more natural substances that undergo a chemical reaction
  9. physical and chemical characteristics of matter used to describe or identify a substance
  10. a substance form during a chemical reaction
  11. a characteristic that can only be observed without changing the substance
Down
  1. a property that depends on the amount of matter in a sample
  2. a system that does not depend on the system size or the amount of material in the system
  3. means of changing one or more chemicals
  4. a characteristic that can only be measured or observed when atoms rearrange during a chemical reaction
  5. large amount

16 Clues: large amount • the smallest particle of an element • means of changing one or more chemicals • a substance form during a chemical reaction • an insoluble solid form by a chemical reaction • the simplest unit of chemical compound that can exist • a property that depends on the amount of matter in a sample • a substance that undergoes change during a chemical reaction • ...

science vocabulary 2021-03-26

science vocabulary crossword puzzle
Across
  1. a substance form during a chemical reaction
  2. a characteristic that can only be observed without changing the substance
  3. large amount
  4. means of changing one or more chemicals
  5. the simplest unit of chemical compound that can exist
  6. a property that depends on the amount of matter in a sample
  7. a single substance either an element or a compound definite composition and properties
  8. an insoluble solid form by a chemical reaction
Down
  1. the process by which one or more substances change to produce one or more different substances
  2. a substance formed by two or more substances which are chemically bonded during the chemical reaction
  3. a characteristic that can only be measured or observed when atoms rearrange during a chemical reaction
  4. a system that does not depend on the system size or the amount of material in the system
  5. the smallest particle of an element
  6. physical and chemical characteristics of matter used to describe or identify a substance
  7. materials made from one or more natural substances that undergo a chemical reaction
  8. a substance that undergoes change during a chemical reaction

16 Clues: large amount • the smallest particle of an element • means of changing one or more chemicals • a substance form during a chemical reaction • an insoluble solid form by a chemical reaction • the simplest unit of chemical compound that can exist • a property that depends on the amount of matter in a sample • a substance that undergoes change during a chemical reaction • ...

Chemical Reactions 2018-02-26

Chemical Reactions crossword puzzle
Across
  1. process of a solid turning into a liquid
  2. Gas produced when an acid reacts with a metal.
  3. Made up of 2 hydrogen atoms and 1 oxygen atom.
  4. Represented by (l) in a chemical equation.
  5. Product made up of two or more materials with different chemical or physical properties eg. Kevlar
  6. Type of change in a reaction eg. freezing water.
  7. Process where a liquid turns into a gas
  8. Product of a reaction of acid and alkali eg. NaCl.
  9. Fuel that comes from a gas tap.
  10. Reaction that gives out heat.
  11. Synthetic materials made up of a chain of molecules.
Down
  1. Product when magnesium is heated in oxygen.
  2. The mass of reactants is always equal to mass of products
  3. Process where an acid cancels out an alkali.
  4. Reaction that takes in heat.
  5. Process where a gas turns into a liquid
  6. Process of burning.
  7. The opposite of an acid.
  8. Product of combustion.
  9. Represented by (g) in a chemical equation.
  10. Type of change in a reaction eg. frying an egg.
  11. Represented by (s) in a chemical equation.

22 Clues: Process of burning. • Product of combustion. • The opposite of an acid. • Reaction that takes in heat. • Reaction that gives out heat. • Fuel that comes from a gas tap. • Process where a gas turns into a liquid • Process where a liquid turns into a gas • process of a solid turning into a liquid • Represented by (l) in a chemical equation. • ...

Chemistry Crossword 2015-11-19

Chemistry Crossword crossword puzzle
Across
  1. material that allows electricity to flow through it
  2. an element that is not metallic
  3. Group seven in the periodic table and are all non-metals
  4. A molecule that has gained or lost one or more electrons
  5. Adsorbs heat energy in a chemical reaction
  6. Has an atomic mass of 14.0067
  7. Can be find in bananas
  8. This can be find in the centre of an atom
  9. A substance that is made up of two or more elements
  10. The same amount as electrons
  11. This gas can be put on balloons and make your voice higher
Down
  1. we need this gas to live
  2. This metal can be find in phone cases. It is also a song
  3. Releases Heat energy in a chemical reaction
  4. An exothermic reaction between an oxidant and fuel with heat and often light
  5. A chemical compound use to either slow down or speed up a chemical reaction
  6. The basic unit of a chemical element
  7. A protein that speeds up a reaction
  8. Has an atomic number of 1
  9. The chemical formula of this metal is FE
  10. The same amount as protons
  11. A substance that has both properties of a metal and non-metal
  12. A chemically bonded number of atoms that are electrically neutral
  13. The chemical formula for water
  14. A chemical element that is a good conductor

25 Clues: Can be find in bananas • we need this gas to live • Has an atomic number of 1 • The same amount as protons • The same amount as electrons • Has an atomic mass of 14.0067 • The chemical formula for water • an element that is not metallic • A protein that speeds up a reaction • The basic unit of a chemical element • The chemical formula of this metal is FE • ...

Macromolecule Crossword 2022-10-26

Macromolecule Crossword crossword puzzle
Across
  1. the building blocks of nucleic acids.
  2. stored energy.
  3. the building blocks of macromolecules.
  4. a nucleotide used to store energy.
  5. reaction (anabolism) forms chemical bonds.
  6. the basic building blocks; there are 20 varieties.
  7. change substances into different substances by breaking chemical bonds and forming new chemical bonds, rearranging atoms in the process.
  8. mainly hydrophobic molecules (fats, oils, and waxes).
  9. potential energy stored in chemical bonds.
  10. two simple sugars combined: sucrose, maltose.
  11. two phosphate groups
  12. reaction (catabolism) breaks chemical bonds.
  13. the amount of energy needed to get a reaction started.
  14. a chemical reaction absorbs more energy than it releases.
Down
  1. three phosphate groups
  2. essential molecules obtained from food.
  3. long chains of monomers.
  4. protein catalysts that lower the activation energy of reactions.
  5. many monosaccharides: glycogen, starch, cellulose
  6. contains ribose
  7. simple sugars glucose, fructose, galactose
  8. a chemical reaction releases more energy than it absorbs.
  9. the most abundant and important organic molecules; contain basic elements Carbon (C), hydrogen (H), oxygen (O), and nitrogen (N).
  10. molecules based on carbon and hydrogen.
  11. large organic molecules in the nucleus; store and process information at the molecular level.
  12. the energy of motion.
  13. the power to do work.
  14. contains deoxyribose
  15. contain carbon, hydrogen, and oxygen in a 1:2:1 ratio.
  16. molecules not based on carbon and hydrogen.
  17. a change in mass or distance.

31 Clues: stored energy. • contains ribose • contains deoxyribose • two phosphate groups • the energy of motion. • the power to do work. • three phosphate groups • long chains of monomers. • a change in mass or distance. • a nucleotide used to store energy. • the building blocks of nucleic acids. • the building blocks of macromolecules. • essential molecules obtained from food. • ...

T1 Science Final Crossword Puzzle 2016-12-01

T1 Science Final Crossword Puzzle crossword puzzle
Across
  1. Where our sun is at right now
  2. Long wave
  3. Absorbed chemical reaction
  4. Atoms splitting
  5. Energy before reaction is the same amount after reaction
  6. Small, white dying star
  7. Sun ends its cycle here
  8. Clumps start to form
  9. Microwave radiation
  10. Expands 100 times its size
  11. Short wave
Down
  1. Still generates energy
  2. Nothing can escape it
  3. Released chemical reaction
  4. Star explodes
  5. Organized chart of radiations
  6. Fusions stop
  7. Atoms combining
  8. Weighs 1 tsp
  9. Cloud of dust and gas

20 Clues: Long wave • Short wave • Fusions stop • Weighs 1 tsp • Star explodes • Atoms splitting • Atoms combining • Microwave radiation • Clumps start to form • Nothing can escape it • Cloud of dust and gas • Still generates energy • Small, white dying star • Sun ends its cycle here • Released chemical reaction • Absorbed chemical reaction • Expands 100 times its size • Where our sun is at right now • ...

Chemical Reaction Quest 2025-10-08

Chemical Reaction Quest crossword puzzle
Across
  1. soda A common kitchen ingredient that reacts with citric acid.
  2. The building blocks of molecules
  3. Starting materials of the reaction
  4. The new substances formed in a chemical reaction
  5. dioxide Gas produced during the bath bomb reaction
  6. A physical change where no new substance is formed
  7. The type of change where atoms rearrange to form new substances
  8. citrate Solid left off during the bath bomb reaction
Down
  1. A state of matter
  2. Helps to identify a substance, like density and flammability
  3. Another word for smell
  4. carbonate A component of marble
  5. Evidence of gas produced during a chemical reaction
  6. System where the mass does not change

14 Clues: A state of matter • Another word for smell • carbonate A component of marble • The building blocks of molecules • Starting materials of the reaction • System where the mass does not change • The new substances formed in a chemical reaction • dioxide Gas produced during the bath bomb reaction • A physical change where no new substance is formed • ...

TTS Chemical and physical changes 2025-08-11

TTS Chemical and physical changes crossword puzzle
Across
  1. is a process of changing a substance that involves the breaking and forming of bonds between atoms, resulting in a new substance with different properties than the original substance.
  2. is an adjective meaning reversible or able to be returned to its original state.
  3. is a characteristic of chemical change.
  4. is a substance or compound formed as a result of a chemical reaction.
  5. is an example of a redox reaction.
  6. is an example of a physical change.
  7. is a reaction that produces salt and water.
  8. is a combination of two or more substances that are physically mixed together but not chemically bonded.
  9. is a substance or compound that is involved in a chemical reaction and undergoes a change into a new substance.
  10. is an example of a chemical change.
  11. is one of the four basic states of matter, along with liquid, gas, and aqueous.
Down
  1. is a change in a substance that does not change its chemical composition, but only its physical properties.
  2. is an example of a physical change.
  3. is when two compounds exchange ions.
  4. is a type of chemical reaction in which two or more substances (elements or compounds) combine to form a single product.
  5. is an example of a chemical change.
  6. is when one element replaces another element in a compound.
  7. is a process that transforms a substance into a new substance with different properties than the original substance.
  8. is a substance formed from two or more different elements that are chemically bonded. Chemistry
  9. means "unreversible."
  10. is a single substance that cannot be broken down into simpler substances through a chemical reaction.
  11. is a number placed in front of a chemical formula in a chemical equation.

22 Clues: means "unreversible." • is an example of a redox reaction. • is an example of a physical change. • is an example of a chemical change. • is an example of a physical change. • is an example of a chemical change. • is when two compounds exchange ions. • is a characteristic of chemical change. • is a reaction that produces salt and water. • ...

Biology Vocab 2025-04-29

Biology Vocab crossword puzzle
Across
  1. A molecule that has a positive and a negative end.
  2. A substance that speeds up a chemical reaction without being used up.
  3. A large molecule made from repeating monomers.
  4. A substance formed as a result of a chemical reaction.
  5. A chemical reaction where two molecules combine, releasing water.
  6. A type of chemical bond where atoms share electrons.
  7. A carbon-based molecule, often including hydrogen and other elements, essential to life.
  8. A small molecule that can join with others to form a polymer.
Down
  1. A chemical reaction that breaks a compound by adding water.
  2. A sugar or starch, used for energy and consisting of carbon, hydrogen, and oxygen.
  3. The energy needed to start a chemical reaction.
  4. A molecule that provides energy for cellular processes.
  5. A very large molecule, like proteins of DNA, consisting of many atoms.
  6. A weak bond between bases in a DNA molecule
  7. A substance that starts a chemical reaction.

15 Clues: A weak bond between bases in a DNA molecule • A substance that starts a chemical reaction. • A large molecule made from repeating monomers. • The energy needed to start a chemical reaction. • A molecule that has a positive and a negative end. • A type of chemical bond where atoms share electrons. • A substance formed as a result of a chemical reaction. • ...

Chemical Formulas & Periodic Table 2015-10-27

Chemical Formulas & Periodic Table crossword puzzle
Across
  1. substances formed in a chemical reaction
  2. matter is neither created or destroyed in ordinary chemical and physical changes
  3. group 17 liquid with mass number 79.9
  4. law that states energy cannot be created or destroyed
  5. expression that shows starting substances and those produced by a chemical reaction
  6. an interaction that holds atoms together
  7. a reaction that requires an input of energy
  8. elements that dull and brittle and poor conductors
Down
  1. symbols and numbers that represent a substance
  2. that participate in a chemical reaction
  3. elements that have properties of metals and nonmetals
  4. a reaction that releases energy
  5. a substance that changes the rate of a reaction without being used up
  6. horizontal rows on the periodic table
  7. vertical columns on the period table, like Noble Gasses
  8. electrons in outer shell of atom
  9. Scientist that developed the current periodic table
  10. a charged atom having more or less electrons than protons
  11. elements that are shiny and good conductors

19 Clues: a reaction that releases energy • electrons in outer shell of atom • horizontal rows on the periodic table • group 17 liquid with mass number 79.9 • that participate in a chemical reaction • substances formed in a chemical reaction • an interaction that holds atoms together • a reaction that requires an input of energy • elements that are shiny and good conductors • ...

Unit B Chapter 2 Vocabulary Preview 2022-04-15

Unit B Chapter 2 Vocabulary Preview crossword puzzle
Across
  1. taste bitter and are compounds that release hydroxide ions in water (OH-)
  2. the change of state from liquid to gas at the surface of a liquid
  3. Equation the arrangement of symbols, formulas, and numbers used to show what happens in a chemical reaction
  4. are substances that change color at a certain range of pH values.
  5. a substance that is dissolved
  6. from gas to liquid
  7. a solution with a large amount of solute compared to the amount solvent
  8. any new substance that is formed during a chemical reaction
  9. a solution with a small amount of solute compared to the amount solvent
  10. Scale a set of numbers between 0 - 14 used to measure the strength of acids and bases
  11. a substance that dissolves other materials
  12. an arrangement of symbols that shows both the kinds and number of atoms in a compound
  13. taste sour and are compounds that release hydrogen ions in water(H+)
Down
  1. a process in which an acid and base react to produce a salt and water
  2. are substances that change color at a certain range of pH values
  3. the change of state of
  4. Reaction a chemical reaction in which more energy is taken in than given off
  5. Reaction a chemical reaction in which more energy is given off than taken in
  6. the substance that undergoes a chemical reaction

19 Clues: from gas to liquid • the change of state of • a substance that is dissolved • a substance that dissolves other materials • the substance that undergoes a chemical reaction • any new substance that is formed during a chemical reaction • are substances that change color at a certain range of pH values • the change of state from liquid to gas at the surface of a liquid • ...

Chemistry 2014-11-18

Chemistry crossword puzzle
Across
  1. / The centre of an atom that contains protons and neutrons
  2. / Compound that dissolves in water
  3. / H20
  4. / Measures heat
  5. of a reaction/ products are formed during chemical reactions as reagents are consumed
  6. / Element of an atom
  7. / A chemical process where two substances interact to form a new substance
  8. of conservation of mass / that the atoms of an object cannot be created or destroyed but can be moved around and be changed into different particles.
  9. Reaction / When two substances react
  10. / The negatively charged part of an atom
  11. / An expression in which symbols and formulae represent a chemical reaction
Down
  1. / particles that fill their container though have no definite shape or volume
  2. / A substance made up of one kind of atom; it cannot be broken down
  3. / Energy in the form of waves
  4. / Absorbing heat
  5. / A new substance produced by a chemical reaction
  6. / Giving off heat
  7. / A substance that reacts with another
  8. / The smallest unit of an element
  9. / A substance made up of two or more elements chemically combined

20 Clues: / H20 • / Measures heat • / Absorbing heat • / Giving off heat • / Element of an atom • / Energy in the form of waves • / The smallest unit of an element • / Compound that dissolves in water • Reaction / When two substances react • / A substance that reacts with another • / The negatively charged part of an atom • / A new substance produced by a chemical reaction • ...

Bio Unit Review 2020-12-18

Bio Unit Review crossword puzzle
Across
  1. Multiple ____ bonded together.
  2. Multiple monomers bonded.
  3. Distributes energy in a chemical reaction.
  4. The substance that undergoes a change in a chemical reaction.
  5. Fats are made from this.
  6. Chemical substance composed of many molecules.
  7. The smallest form of matter.
  8. a process that leads to a chemical transformation.
  9. Used to build muscles, made of Carbon Hydrogen and Oxygen.
  10. The attraction of melecules to those of a different kind.
  11. substance that acts as a catalyst in living organisms.
  12. present in both DNA and RNA.
  13. Another word for solvent
  14. a chemical bond that involves the sharing of electron pairs between atoms.
Down
  1. A substance that dissolves other substances.
  2. The periodic table of ______.
  3. a particle, atom or molecule with a net electrical charge.
  4. a type of chemical bonding that involves the attraction between oppositely charged ions.
  5. The end product of a chemical reaction.
  6. A single molecule that can be bonded polymers.
  7. The nucleobase of a nucleotide.
  8. building block of proteins.
  9. A is a molecule or ion capable of donating a proton
  10. The attraction of molecules that are the same.
  11. A homogeneous mixture composed of two or more substances.
  12. Absorbers energy in a chemical reaction.

26 Clues: Fats are made from this. • Another word for solvent • Multiple monomers bonded. • building block of proteins. • The smallest form of matter. • present in both DNA and RNA. • The periodic table of ______. • Multiple ____ bonded together. • The nucleobase of a nucleotide. • The end product of a chemical reaction. • Absorbers energy in a chemical reaction. • ...

Reaction kinetics 2023-11-16

Reaction kinetics crossword puzzle
Across
  1. A substance formed in a chemical reaction.
  2. Interaction between molecules leads to chemical reactions.
  3. Substance that speeds up a reaction without being consumed.
  4. The exponent of concentration in the rate equation.
  5. The slowest step that determines the overall rate.
  6. Energy needed to initiate a chemical reaction.
  7. A substance consumed in a chemical reaction.
  8. The amount of substance in a given volume.
Down
  1. Process where substances transform into new substances.
  2. A substance formed in one step and consumed in another during a reaction.
  3. The speed at which a chemical reaction occurs.
  4. A group of atoms bonded together, participating in reactions.
  5. The study of reaction rates and mechanisms.
  6. Time required for a reactant to decrease by half.

14 Clues: A substance formed in a chemical reaction. • The amount of substance in a given volume. • The study of reaction rates and mechanisms. • A substance consumed in a chemical reaction. • The speed at which a chemical reaction occurs. • Energy needed to initiate a chemical reaction. • Time required for a reactant to decrease by half. • ...

Chemical Reactions 2013-03-24

Chemical Reactions crossword puzzle
Across
  1. A process in which substances interact, causing the formation of new substances
  2. ______ '->' is used to symbolize this
  3. In the presence of ____ "hv" is used to symbolize this.
  4. State found between the liquid and plasma states
  5. The process in which a compound breaks down into other compounds or elements
  6. In the presence of ____ A triangle is used to symbolize this.
  7. Characterized by structural rigidity and resistance to changes of shape
  8. A solution in which the solvent is the water
Down
  1. A way of describing a chemical reaction using words
  2. A way of describing a chemical reaction using the formulas of the products and reactants
  3. A chemical reaction including oxygen
  4. A chemical present at the start of a chemical reaction that is used up during the reaction
  5. State with a definite volume but no fixed shape
  6. Chemical produced during a chemical reaction
  7. Two or more elements or compounds combine to form a new substance

15 Clues: A chemical reaction including oxygen • ______ '->' is used to symbolize this • Chemical produced during a chemical reaction • A solution in which the solvent is the water • State with a definite volume but no fixed shape • State found between the liquid and plasma states • A way of describing a chemical reaction using words • ...

Module 1 Vocabulary (7th Grade) 2023-09-12

Module 1 Vocabulary (7th Grade) crossword puzzle
Across
  1. A change in matter in which the substances that make up the matter change into other substances with different chemical and physical properties
  2. More energy is required to break the bonds of the reactants than is released when products form
  3. Law that states that energy is always transferring, but energy is not created or destroyed
  4. law 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
  5. Occurs when a substance reacts with another substance, changing it to a new substance
  6. the amount of space a substance takes up
  7. A substance produced by a chemical reaction
  8. the mass per unit of volume of a substance
  9. More energy is released when the products form than is required to break the bonds in the reactants
  10. a characteristic of matter that can be observed as it changes to a different type of matter
  11. The amount of matter in an object
  12. The starting substance in a chemical reaction
Down
  1. A process in which atoms of one or more substances rearrange to form one or more new substances
  2. A number placed in front of an element symbol or chemical formula in an equation
  3. Occurs when substances react with oxidizing agents, changing it to a new substance
  4. The energy released when atoms form bonds
  5. The ability of a type of matter to burn easily
  6. a characteristic of matter that can be observed or measured without changing the identity of the matter

18 Clues: The amount of matter in an object • the amount of space a substance takes up • The energy released when atoms form bonds • the mass per unit of volume of a substance • A substance produced by a chemical reaction • The starting substance in a chemical reaction • The ability of a type of matter to burn easily • ...

Chemistry Review 2017-02-10

Chemistry Review crossword puzzle
Across
  1. the path something travels along
  2. column of elements on periodic table
  3. mass of an element
  4. horizontal row of periodic table
  5. group of atoms bonded together
  6. mass that can not be destroyed by a chemical reaction
  7. a substance, periodic table is filled with them
  8. solid material, malleable
  9. good conductors
  10. not a metal
  11. heat reaction
  12. no electric charge
  13. the basic unit of a chemical element
Down
  1. "the center"
  2. substance formed by chemical reaction
  3. negative electric charge
  4. electrons on outermost shell
  5. number of protrons in nucleus of atom
  6. cold reaction
  7. usually unreactive, gas elements
  8. developed periodic table
  9. essentially a picture/shape
  10. substance that takes part in a reaction
  11. composed of two or more elements
  12. positive electric charge

25 Clues: not a metal • "the center" • cold reaction • heat reaction • good conductors • mass of an element • no electric charge • negative electric charge • developed periodic table • positive electric charge • solid material, malleable • essentially a picture/shape • electrons on outermost shell • group of atoms bonded together • the path something travels along • horizontal row of periodic table • ...

Chapter 7 Vocabulary 2024-01-02

Chapter 7 Vocabulary crossword puzzle
Across
  1. a reaction in which a compound breaks down into two or more simpler substances
  2. a reaction in which one element replaces a similar element in a compound
  3. a chemical reaction that releases energy by light or heat
  4. species formed from chemical reactions
  5. symbolic representation of a chemical reaction in the form of symbols
  6. 6.02214076 × 1023 of some chemical unit
Down
  1. a reaction in which a substance reacts with oxygen gas, releasing energy in the form of light and heat
  2. reactions that involve the transfer of electrons from one species to another
  3. a chemical process in which two or more simple elements or compounds combine to form a more complex product
  4. a reaction in which the positive and negative ions of two ionic compounds exchange places to form two new compounds
  5. any chemical reaction that absorbs heat from its environment
  6. substance that undergoes a change during a reaction
  7. energy stored in the bonds of chemical compounds, like atoms and molecules
  8. the mass of one mole of any substance
  9. a factor that is multiplied by a variable or another quantity in an equation or formula

15 Clues: the mass of one mole of any substance • species formed from chemical reactions • 6.02214076 × 1023 of some chemical unit • substance that undergoes a change during a reaction • a chemical reaction that releases energy by light or heat • any chemical reaction that absorbs heat from its environment • ...

macromolecules 2021-08-22

macromolecules crossword puzzle
Across
  1. any disaccharides and monosaccharides.
  2. an organic molecule that is the building block of DNA and RNA.
  3. are small molecules that are the building blocks of proteins.
  4. the ability to absorb more liquid.
  5. a sugar alcohol.
  6. a physical/chemical situation where a system can take more of a substance.
  7. the energy needed to initiate a reaction.
  8. any various organic compound. that is insoluble in water.
  9. are neutral compounds of carbon, hydrogen, and oxygen.
  10. are naturally occurring extremely complex substance that consist of amino acid residues joined by peptide bonds
  11. the overall standard enthalpy change.
Down
  1. the building blocks of the fat in something
  2. are a biological catalyst
  3. are simple sugars made of three to seven carbons
  4. are any substance that is composed of two molecules of simple sugars linked together.
  5. naturally occurring chemical compounds that serve as the primary information carrying molecules in cells.
  6. the base on which an organism lives.
  7. a chemical reaction that absorbs energy.
  8. a large molecule of many smaller monosaccharides.
  9. a chemical substance formed as a result of a chemical reaction.

20 Clues: a sugar alcohol. • are a biological catalyst • the ability to absorb more liquid. • the base on which an organism lives. • the overall standard enthalpy change. • any disaccharides and monosaccharides. • a chemical reaction that absorbs energy. • the energy needed to initiate a reaction. • the building blocks of the fat in something • ...

CHEMICAL REACTION AND EQUATION 2025-04-28

CHEMICAL REACTION AND EQUATION crossword puzzle
Across
  1. Reaction where a more reactive element replaces a less reactive one.
  2. Symbolic representation of a chemical reaction.
  3. Burning with release of heat and light.
  4. Removal of oxygen from a substance.
  5. Process of forming new substances.
  6. Reaction that absorbs heat.
  7. Spoiling of food by oxidation.
Down
  1. Reaction that releases heat.
  2. Addition of oxygen to a substance.
  3. Substances that react in a chemical change.
  4. Equal number of atoms on both sides.
  5. Substances formed after a chemical reaction
  6. Solid formed in a reaction.
  7. Slow destruction of metals.
  8. Substance that speeds up a reaction.

15 Clues: Solid formed in a reaction. • Slow destruction of metals. • Reaction that absorbs heat. • Reaction that releases heat. • Spoiling of food by oxidation. • Addition of oxygen to a substance. • Process of forming new substances. • Removal of oxygen from a substance. • Equal number of atoms on both sides. • Substance that speeds up a reaction. • ...

IPC Test Extra Credit (20 points) 2024-04-12

IPC Test Extra Credit (20 points) crossword puzzle
Across
  1. symbols and formulas to describe a reaction
  2. stated electron orbit the nucleus
  3. signs of a chemical reaction
  4. beginning substances in a chemical reaction
  5. discovered the nucleus has a positive charge
  6. atomic number of six
  7. proposed the Plum Pudding model
Down
  1. has twenty protons
  2. another sign of a chemical reaction
  3. number of protons and neutrons
  4. mass is neither created or destroyed
  5. orbit the nucleus and have almost no mass
  6. has 10 electrons
  7. proposed that the atom is indivisible
  8. substances created in a chemical reaction

15 Clues: has 10 electrons • has twenty protons • atomic number of six • signs of a chemical reaction • number of protons and neutrons • proposed the Plum Pudding model • stated electron orbit the nucleus • another sign of a chemical reaction • mass is neither created or destroyed • proposed that the atom is indivisible • orbit the nucleus and have almost no mass • ...

CHEMISTRY 2024-12-20

CHEMISTRY crossword puzzle
Across
  1. A bond formed by the attraction between free-floating electrons and metal ions (8 letters).
  2. A state where forward and reverse reactions occur at the same rate (11 letters).
  3. The substance in which a solute dissolves to form a solution (7 letters).
  4. A high-energy state of matter where electrons are stripped from atoms (6 letters).
  5. The minimum energy required for a reaction to occur (16 letters).
  6. Atoms of the same element with different numbers of neutrons (7 letters).
  7. The number of protons in an atom's nucleus (12 letters).
  8. The heat content of a system (8 letters).
  9. A symbolic representation of a chemical reaction (8 letters).
  10. Movement of particles from an area of higher concentration to lower concentration (9 letters).
  11. The process of using electricity to decompose a compound (12 letters).
  12. A starting substance in a chemical reaction (8 letters).
  13. A state of matter with a definite shape and volume (5 letters).
  14. A type of chemical bond where electrons are shared (8 letters).
  15. Gain of electrons during a chemical reaction (9 letters).
  16. The negative electrode in electrolysis (7 letters).
  17. A neutral particle in the nucleus (7 letters).
  18. A reaction between an acid and a base to form water and a salt (14 letters).
  19. A type of chemical bond formed by the transfer of electrons (5 letters).
  20. Two or more atoms bonded together (8 letters).
Down
  1. The theory that particles must collide with sufficient energy to react (15 letters).
  2. An insoluble solid that forms during a chemical reaction (11 letters).
  3. A representation of a substance using chemical symbols (7 letters).
  4. The smallest unit of matter (4 letters).
  5. A state of matter that takes the shape of its container but has a fixed volume (6 letters).
  6. A substance formed as a result of a chemical reaction (7 letters).
  7. The speed at which a chemical reaction occurs (13 letters).
  8. A negatively charged particle orbiting the nucleus (8 letters).
  9. Transition of a substance directly from solid to gas without becoming a liquid (11 letters).
  10. Loss of electrons during a chemical reaction (9 letters).
  11. A principle that predicts the effect of changes in equilibrium (11 letters).
  12. A reaction that releases heat (10 letters).
  13. The positive electrode in electrolysis (5 letters).
  14. A substance that speeds up a reaction without being consumed (8 letters).
  15. A positively charged particle in the nucleus (6 letters).
  16. An atom or molecule with a net electric charge (3 letters).
  17. A reaction where the products can reform into reactants (10 letters).
  18. The joining of atoms to form molecules or compounds (7 letters).
  19. A state of matter with no fixed shape or volume (3 letters).
  20. A reaction that absorbs heat (10 letters).
  21. The amount of a substance in a given volume (13 letters).

41 Clues: The smallest unit of matter (4 letters). • The heat content of a system (8 letters). • A reaction that absorbs heat (10 letters). • A reaction that releases heat (10 letters). • A neutral particle in the nucleus (7 letters). • Two or more atoms bonded together (8 letters). • The positive electrode in electrolysis (5 letters). • ...

Matter definitions 2025-04-24

Matter definitions crossword puzzle
Across
  1. the force of attraction between molecules of the same substance, causing them to stick together
  2. a substance that cant be broken up into separate substances by other chemicals
  3. a characteristic of a substance that can be observed or measured without changing the substance's chemical identity
  4. a measure of how much "stuff" is in something
  5. happens when one chemical substance is transformed into one or more different substances
  6. A substance that speeds up a chemical reaction
  7. The substances which participate in a chemical reaction
  8. Taking place or being formed by absorbing heat
  9. The amount of space the object takes up
  10. a chemical reaction that releases energy, usually in the form of heat, into its surroundings
  11. the science that studies the makeup of matter and how it changes.
  12. a blend of two or more substances where each substance keeps its own individual properties
Down
  1. a change in the form or appearance of a substance, without changing its chemical composition
  2. Species formed from a chemical reaction
  3. A rearrangement of the atoms or molecules of two or more substances that come into contact with each other, resulting in the formation of one or more new substances
  4. the capacity to do work or cause change
  5. A group of two or more atoms bonded together
  6. a characteristic of a particular substance that can be observed in a chemical reaction
  7. the form of energy that is transferred between two substances at different temperatures.
  8. An attraction between atom
  9. The smallest part of a substance that cannot be broken down chemically
  10. Anything that takes up space

22 Clues: An attraction between atom • Anything that takes up space • Species formed from a chemical reaction • the capacity to do work or cause change • The amount of space the object takes up • A group of two or more atoms bonded together • a measure of how much "stuff" is in something • A substance that speeds up a chemical reaction • ...

Chemistry UnitB 2014-11-06

Chemistry UnitB crossword puzzle
Across
  1. horizontal row of elements in the periodic table
  2. shiny,malleable,ductile element that conducts electricity
  3. principle that matter is not created or destroyed in a chemical reaction
  4. ability to be stretched into wire
  5. the smallest part of an element that is representative of that element
  6. number of protons in the nucleus of an element
  7. positively charged center of an atom
  8. group 2 elements in the periodic table
  9. dull brittle element that does not conduct electricity
  10. an experiment in which all parts of a chemical reaction are accounted for
  11. atom that is electrically charged
  12. ability to be pounded into sheets
  13. description of how a substance interacts with other substances
  14. pure substance that cannot be broken down
  15. slow chemical change when oxygen reacts with a metal
  16. combination of symbols that represent a compound
  17. pure substance formed from a metal and non-metal
  18. absorbs energy (cold)
  19. workplace hazardous materials information system
  20. releases energy (warm)
Down
  1. experiment in which products can escape a chemical reaction
  2. negatively charged particle
  3. group 17 of the periodic table
  4. substance that helps a chemical reaction to proceed quicker
  5. chemical reaction that takes place in cells
  6. element has both metallic and non-metallic properties
  7. catalyst involved in chemical reactions in living things
  8. chemical combination of two or more elements
  9. group 18 of the periodic table
  10. group 1 metals in the periodic table
  11. pure substance formed when non-metals combine
  12. change that results when substances react to create a different substance
  13. reaction that occurs when oxygen reacts with a substance to form a new substance
  14. chemical name of CO
  15. mass of one atom of an element

35 Clues: chemical name of CO • absorbs energy (cold) • releases energy (warm) • negatively charged particle • group 17 of the periodic table • group 18 of the periodic table • mass of one atom of an element • ability to be stretched into wire • atom that is electrically charged • ability to be pounded into sheets • positively charged center of an atom • group 1 metals in the periodic table • ...

Chemistry Crossword 2024-05-16

Chemistry Crossword crossword puzzle
Across
  1. The gas law that relates temperature and volume of the gas
  2. Type of chemical reaction where one compound breaks down into 2 or more
  3. Type of chemical reaction where carbon and hydrogen react with oxygen to form carbon dioxide and water
  4. Type of chemical reaction where one element replaces another in a chemical compound
  5. A unit that describes an amount of a substance, not a fuzzy animal
Down
  1. A way to calculate how much product a chemical reaction will produce
  2. Type of chemical reaction where two or more compounds combine into one compound
  3. A way to measure how much product is made compared to how much should have been made
  4. MASS The mass of one mole of an element or compound
  5. Chemical compounds that exist at the end of a chemical reaction
  6. A unit that measures temperature that can never be negative
  7. The relationship between mole amounts of compounds in a chemical reaction
  8. Chemical compounds that exist at the beginning of a chemical reaction

13 Clues: MASS The mass of one mole of an element or compound • The gas law that relates temperature and volume of the gas • A unit that measures temperature that can never be negative • Chemical compounds that exist at the end of a chemical reaction • A unit that describes an amount of a substance, not a fuzzy animal • ...

Chemistry vocab 2025-04-25

Chemistry vocab crossword puzzle
Across
  1. attraction between atoms
  2. smallet unit
  3. study of matter
  4. type of measurement
  5. unit of measurement
  6. cant be broken
  7. 3 dimensional space
  8. solid liquid gas
  9. 2 Atoms connected by chemicals
  10. changing substance chemical
  11. substance changes
  12. substance converted to different
  13. increase over time
Down
  1. physical process
  2. help chemical reaction
  3. Everything that takes up space
  4. elements bond together
  5. 2 or more substance
  6. helps do work
  7. form of energy
  8. interacts with substance
  9. chemical reaction
  10. act state or process
  11. starting substance

24 Clues: smallet unit • helps do work • cant be broken • form of energy • study of matter • physical process • solid liquid gas • chemical reaction • substance changes • starting substance • increase over time • type of measurement • 2 or more substance • unit of measurement • 3 dimensional space • act state or process • help chemical reaction • elements bond together • attraction between atoms • ...

Lab-Aids Ch. 4 "Physical and Chemical Changes" 2022-11-29

Lab-Aids Ch. 4 "Physical and Chemical Changes" crossword puzzle
Across
  1. Describes a chemical change that rearranges atoms into different substances.
  2. The initial energy required to get a reaction started.
  3. The tendency of elements to form chemical bonds.
  4. A fundamental property of matter that comes in positive and negative.
  5. A reaction where less energy is absorbed into the reactants from the surroundings and more energy is given off by the products; the enthalpy change is -.
  6. A reaction where more energy is absorbed into the reactants from the surroundings and less energy is given off by the products; the enthalpy change is +.
  7. A measurement or scale of the H+ concentration that tells whether a solution is an acid or a base. Pure water has a = 7.0, < 7 are acidic, > 7 are basic.
  8. A relatively strong connection between 2 atoms.
  9. A chemical that dissolves in water to create less H+ ions than there are in pure water (or equivalently, more OH- ions.
  10. A change in physical properties, such as phase, shape, or temperature; for example, grinding, melting, boiling, dissolving, heating or cooling.
  11. A chemical that dissolves in water to create more H+ than there are in neutral water.
  12. A tiny, positively charged particle in the nucleus of an atom.
  13. Substances that are used and changed in a chemical reaction- the starting materials in a chemical reaction.
  14. An insoluble compound (often a solid), that forms from a chemical reaction in aqueous solution.
  15. The change in energy when 1 mole of a compound is assembled from pure elements.
  16. A tiny, negatively charged particle that fills the outer volume of an atom and is responsible for the formation of chemical bonds.
  17. The exothermic reactions that most living things use to release energy (A.T.P.) for a cell's use.
Down
  1. A chemical reaction that decreases the charge of an atom or ion by accepting electrons- gain of electrons. Element charge decreases.
  2. A neutral group of atoms that are covalently bonded together into a single unit.
  3. Relatively weak forces between molecules.
  4. A change that affects the structure or composition of the molecules that make up a substance, typically turning 1 substance into another substance with different physical properties, a result of a chemical reaction.
  5. A chemical reaction that increases the charge of an atom or ion by giving up electrons- loss of electrons- element charge increases.
  6. An attraction between oppositely charged metals and nonmetals that occurs due to the transfer of electrons from a metal to a nonmetal.
  7. The tiny core of an atom that contains all of the protons and neutrons. This area is extraordinarily small- about 1/10,000 the diameter of the atom.
  8. The endothermic reactions used by autotrophs to convert SOLAR ENERGY into chemical energy.
  9. Strong forces that bond atoms together into molecules or ions.
  10. Describes a chemical equation which satisfies the law of conservation of mass (matter) because the total # of atoms of each type of element are the same on the reactants and products side of the equation.
  11. A chemical bond that consists of 1, 2, or three pairs of shared electrons between nonmetallic elements.
  12. The number out in front of an element or compound which tells you how many moles of each substance participate and are formed in a chemical reaction.
  13. Describes reactants and/or products in chemical reactions that are dissolved in water and therefore more likely to react to form new substances. However, water is not affected by the reaction.
  14. Describes an atom or molecule that has zero electric charge due to it having equal numbers of protons and neutrons.
  15. A substance that is created or released in a chemical reaction.
  16. An ionic compound in which the + ion comes from a base and the negative ion comes from an acid or an ionic compound that dissolves in water to produce ions.

33 Clues: Relatively weak forces between molecules. • A relatively strong connection between 2 atoms. • The tendency of elements to form chemical bonds. • The initial energy required to get a reaction started. • Strong forces that bond atoms together into molecules or ions. • A tiny, positively charged particle in the nucleus of an atom. • ...

Energy Changes & Rates of Reaction 2024-10-20

Energy Changes & Rates of Reaction crossword puzzle
Across
  1. The change in concentration of reactants or products per unit time, typically expressed in mol/L·s; affected by factors such as temperature, concentration, and catalysts.
  2. The technique used to measure the amount of heat released or absorbed during a chemical reaction or physical process.
  3. Collisions between particles that have the proper orientation and sufficient energy to result in a reaction.
  4. A substance that increases the rate of a chemical reaction by lowering the activation energy required, without being consumed in the reaction itself.
  5. A chemical reaction that releases heat, causing the temperature of the surroundings to increase; commonly associated with combustion and certain types of oxidation reactions.
  6. The total heat content of a system, its change is represented by ΔH; it reflects the energy absorbed or released in a chemical reaction under constant pressure.
  7. A process where a chemical compound breaks down into simpler substances when heated, such as the decomposition of calcium carbonate into calcium oxide and carbon dioxide.
  8. The amount of energy required to break one mole of bonds in a gaseous molecule, used to calculate enthalpy changes in reactions involving bond breaking and forming.
  9. A reaction where the rate is proportional to the square of the concentration of one reactant or the product of two reactant concentrations, often written as Rate=k[A]2 or Rate=k[A][B].
  10. A reaction or process that absorbs heat from its surroundings, resulting in a decrease in temperature of the surroundings, such as the melting of ice.
  11. A principle stating that the total enthalpy change of a reaction is independent of the pathway it takes, allowing enthalpy changes of multiple reactions to be added algebraically.
Down
  1. The minimum energy that reactants must possess in order to successfully collide and form products in a chemical reaction; often represented by the symbol Ea.
  2. A detailed, step-by-step description of the pathway taken by molecules during a chemical reaction, outlining the sequence of elementary steps leading to product formation.
  3. A theory that explains how chemical reactions occur and why rates differ for different reactions; states that particles must collide with the correct orientation and sufficient energy to react.
  4. A high-energy, unstable arrangement of atoms formed during a reaction, representing the point at which bonds are breaking and forming.
  5. A proportionality constant in the rate law equation, k, which changes with temperature and determines the rate at which a reaction proceeds under given conditions.
  6. A reaction where the rate is independent of the concentration of the reactants, meaning that changes in the reactant concentration do not affect the rate of the reaction.
  7. A reaction where the rate is directly proportional to the concentration of one reactant, often written as Rate=k[A].
  8. The slowest step in a reaction mechanism, which limits the overall rate of the reaction and determines the reaction rate law.
  9. A molecular entity that forms during a multi-step reaction, which is not present in the final products but is essential for the overall reaction mechanism.
  10. A measure of the average kinetic energy of the particles in a system; an increase in temperature generally increases the reaction rate by providing more energy for collisions.
  11. A thermodynamic quantity that represents the degree of disorder or randomness in a system; symbolized as S, it typically increases in spontaneous processes.

22 Clues: Collisions between particles that have the proper orientation and sufficient energy to result in a reaction. • A reaction where the rate is directly proportional to the concentration of one reactant, often written as Rate=k[A]. • The technique used to measure the amount of heat released or absorbed during a chemical reaction or physical process. • ...

chemistry crossword 2015-11-23

chemistry crossword crossword puzzle
Across
  1. characteristics that describe a particular substance e.g color,lustre,density
  2. an element that has both metallic and non-metallic properties
  3. workplace hazardous materials information system
  4. the number of protons in a nucleus of one atom of an element
  5. the smallest part of an element; a neutral particle made up of a nucleus containing protons and neutrons and in which the number of electrons equal the number of protons
  6. mass cannot be created or destroyed in a chemical reaction
  7. change in the appearance or state of a substance that does not change the composition
  8. a chemical reaction that releases energy
  9. a shiny, malleable and ductile element that conducts electricity
  10. a neutral particle in the nucleus of an atom
  11. negatively charged particle that orbits the nucleus of an atom
Down
  1. an experiment in which one or more of the products of a chemical reaction can escape
  2. anything that has mass and takes up space
  3. a table in which the elements are organized by their physical and chemical
  4. substance that reacts with another substance or substances in a chemical reaction to create a new substance with different properties
  5. a pure substance formed when at least two non-metals combine
  6. mass of one atom of an element calculated from the total number of protons, neutrons and electrons
  7. positively charged particle in the nucleus of an atom
  8. a change that results when two or more substances react to create a new substance with different properties
  9. a dull, brittle element that does not conduct electricity
  10. a chemical reaction that absorbs energy
  11. a pure substance formed when at least one non-metal and one metal combine
  12. an experiment in which all products and reactants of a chemical reaction are accounted for
  13. a chemical combination of two or more elements in a specific ratio
  14. a new substance produced in a chemical reaction between reactants

25 Clues: a chemical reaction that absorbs energy • a chemical reaction that releases energy • anything that has mass and takes up space • a neutral particle in the nucleus of an atom • workplace hazardous materials information system • positively charged particle in the nucleus of an atom • a dull, brittle element that does not conduct electricity • ...

Chemistry Crossword 2015-11-23

Chemistry Crossword crossword puzzle
Across
  1. new substance produced in a chemical reaction between reactants
  2. chemical reaction that releases heat
  3. vertical column of elements in the periodic table
  4. pure substance fromed when non-metals combine
  5. horizontal row of elements in the periodic table
  6. substance that reacts with another substance or substances in chemical reaction to create new substance with different properties
  7. an experiment in which one or more products of a chemical reaction can escape
  8. pure substance formed when at least one metal and non-metal combine
  9. reactivity is not as strong as alkali metals
  10. the most stable and unreactive elements
  11. group of atoms joined by covalent bonds
  12. shiny,malleable,ductile element that conducts electricity
  13. dull,brittle element that does not conduct electricity
Down
  1. anything that has mass and occupies space
  2. change in the appearance or state of a substance that does not change the composition
  3. change that results when two or more substances react to create a different substance or substances
  4. chemical reaction that absorbs heat
  5. neutral particle in the nucleus of an atom
  6. element that has both metallic and non-metallic properties
  7. characteristic that describes a particular substance
  8. a table with elements organized by their physical and chemical properties
  9. the most reactive non-metals
  10. an experiment in which all reactants and products of a chemical reaction are accounted for
  11. positively charged particle in the nucleus of an atom
  12. the most reactive of the metals

25 Clues: the most reactive non-metals • the most reactive of the metals • chemical reaction that absorbs heat • chemical reaction that releases heat • the most stable and unreactive elements • group of atoms joined by covalent bonds • anything that has mass and occupies space • neutral particle in the nucleus of an atom • reactivity is not as strong as alkali metals • ...

Vocab - Science 2022-03-18

Vocab - Science crossword puzzle
Across
  1. are changes affecting the form of a chemical substance, but not its chemical composition. used to separate mixtures into their component compounds, but can not usually be used to separate compounds into chemical elements or simpler compounds.
  2. A substitution reaction is a chemical reaction during which one functional group in a chemical compound is replaced by another functional group. Substitution reactions are of prime importance in organic chemistry.
  3. is any of a material's properties that becomes evident during, or after, a chemical reaction; that is, any quality that can be established only by changing a substance's chemical identity.
  4. that has external interactions. Such interactions can take the form of information, energy, or material transfers into or out of the system boundary, depending on the discipline which defines the concept
  5. a substance that takes part in and undergoes change during a reaction.
  6. the production of chemical compounds by reaction from simpler materials. Or the combination of ideas to form a theory or system.
  7. the state or process of rotting; decay.
  8. a number placed in front of a chemical symbol or formula. It shows how many atoms or molecules of the substance are involved in the reaction. For example, two molecules of hydrogen would be written as 2H2
  9. the minimum quantity of energy which the reacting species must possess in order to undergo a specified reaction.
  10. a substance that acts as a catalyst in living organisms, regulating the rate at which chemical reactions proceed without itself being altered in the process.
  11. is any property that is measurable, whose value describes a state of a physical system. The changes in the physical properties of a system can be used to describe its changes between momentary states. are often referred to as observables. They are not modal properties.
Down
  1. is a process that leads to the chemical transformation of one set of chemical substances to another.
  2. a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
  3. Hot, or burning, is a high-temperature exothermic redox chemical reaction between a fuel and an oxidant, usually atmospheric oxygen, that produces oxidized, often gaseous products, in a mixture termed as smoke.
  4. mass is neither created nor destroyed in chemical reactions. In other words, the mass of any one element at the beginning of a reaction will equal the mass of that element at the end of the reaction.
  5. is a type of thermodynamic system where mass is conserved within the boundaries of the system, but energy is allowed to freely enter or exit the system.
  6. is the study of substances—that is, elements and compounds—while biology is the study of living things. However, these two branches of science meet in the discipline of biochemistry, which studies the substances in living things and how they change within an organism.
  7. a substance which slows down or prevents a particular chemical reaction or other process or which reduces the activity of a particular reactant, catalyst, or enzyme.
  8. At the most fundamental level, is composed of elementary particles known as quarks and leptons (the class of elementary particles that includes electrons). Quarks combine into protons and neutrons and, along with electrons, form atoms of the elements of the periodic table, such as hydrogen, oxygen, and iron.
  9. is the abundance of a constituent divided by the total volume of a mixture. Several types of mathematical description can be distinguished such as… mass concentration, molar concentration, number concentration, and volume concentration.
  10. material such as coal, gas, or oil that is burned to produce heat or power. or , supply or power (an industrial plant, vehicle, or machine) with fuel. Or, cause (a fire) to burn more intensely.
  11. are the species formed from chemical reactions.

22 Clues: the state or process of rotting; decay. • are the species formed from chemical reactions. • a substance that takes part in and undergoes change during a reaction. • is a process that leads to the chemical transformation of one set of chemical substances to another. • ...

Chemical Reactions 2024-12-03

Chemical Reactions crossword puzzle
Across
  1. Two ionic COMPOUNDS swap metals to form two NEW ionic compounds
  2. The final substance(s) are called
  3. the SPEED at which a chemical REACTION occurs
  4. HIGH blank of reactants SPEEDS UP the reaction
  5. Chemical properties can only be observed during
  6. One COMPOUND breaks down into two or more SUBSTANCES
  7. chemical reactions will happen FASTER if there is MORE blank available
  8. INCREASING the blank provides particles with MORE energy, SPEEDING UP the reaction
  9. If a reaction ABSORBS energy from the surroundings it is considered
Down
  1. If a reaction RELEASES energy into the surroundings is is considered
  2. One ELEMENT in a COMPOUND is replaced by another ELEMENT
  3. The starting substance(s) are called
  4. any characteristic of a material that when OBSERVED produces one or more NEW SUBSTANCES
  5. A substance that INCREASES the reaction RATE without being consumed by the reaction
  6. ONE or more substances COMBINE to form ONE compound
  7. The law of blank of energy
  8. A substance reacts with OXYGEN to produce energy in the form of HEAT and LIGHT
  9. the MINIMUM amount of energy required to START a chemical reaction

18 Clues: The law of blank of energy • The final substance(s) are called • The starting substance(s) are called • the SPEED at which a chemical REACTION occurs • HIGH blank of reactants SPEEDS UP the reaction • Chemical properties can only be observed during • ONE or more substances COMBINE to form ONE compound • One COMPOUND breaks down into two or more SUBSTANCES • ...

Chemical reaction 2021-02-04

Chemical reaction crossword puzzle
Across
  1. the starting substance in a chemical-
  2. process when atoms rearrange
  3. image or diagram
  4. Tiny pieces that all matter is made of
Down
  1. something made of the same atoms/group
  2. atoms grouped together in a certain way
  3. substance written in letter and
  4. atoms
  5. something observed about a substance

9 Clues: atoms • image or diagram • process when atoms rearrange • substance written in letter and • something observed about a substance • the starting substance in a chemical- • something made of the same atoms/group • Tiny pieces that all matter is made of • atoms grouped together in a certain way

Chemical reaction 2021-03-05

Chemical reaction crossword puzzle
Across
  1. 8)A chemical formula is also called ... formula
  2. 2)what is the opposite reactions to the synthesis?
  3. 7)he wrote the formula on Senku’s clothes
  4. 9)the arrow in between products and reactants
Down
  1. 3)organic compounds such as ... and hydrogen are always listed first
  2. 1)who identified the synthesis reactions?
  3. 4)Priestley had discovered ... as a result of decomposition reaction
  4. 5)in chemical reactions it never changes
  5. 6)had postulated the atomic theory in the 19th

9 Clues: 5)in chemical reactions it never changes • 1)who identified the synthesis reactions? • 7)he wrote the formula on Senku’s clothes • 9)the arrow in between products and reactants • 6)had postulated the atomic theory in the 19th • 8)A chemical formula is also called ... formula • 2)what is the opposite reactions to the synthesis? • ...

Macromolecules 2021-05-17

Macromolecules crossword puzzle
Across
  1. - A Molecule that is made up of simple sugars that is used for quick energy. Monomer: Monosaccharide
  2. - Monomer- amino acids, Functions: Storage, Transport, Regulatory, Movement Structural and Enzymes
  3. reaction - A chemical change that occurs when two or more substances combine to form a new substance.
  4. - It is what the reactants are changed into in a chemical reaction.
  5. - Energy needed to start a chemical reaction
  6. - An model used to explain how certain substrates fit inside of an enzyme.
  7. - A bond that holds amino acids together in proteins.
  8. - The smallest unit of a polymer
  9. - A molecule that is acted upon by an enzyme
Down
  1. - A lipid that is composed of a glycerol and three fatty acids.
  2. - A Weak bond that forms Between Oxygen and Hydrogen.
  3. - The part of an enzyme where the substrate binds to.
  4. - Store Heredity information for making proteins in the body. DNA and RNA. Monomer: nucleotides
  5. - A lipid that is produce by the body to act as chemical messengers (Hormones).
  6. - Proteins that act as a biological catalyst to speed up chemical reactions
  7. - enzyme that speeds up a chemical reaction by lowering the activation energy needed for the reaction.
  8. - Substances that are used to start a chemical reaction.
  9. - Used for long term energy storage, Insulation, and Protection. Monomer: No true monomer. Lipids are compounds which are not soluble in water. Lipids are hydrophobic which means that they are water
  10. - A molecule made up of many monomers. A very large molecule

19 Clues: - The smallest unit of a polymer • - Energy needed to start a chemical reaction • - A molecule that is acted upon by an enzyme • - A Weak bond that forms Between Oxygen and Hydrogen. • - The part of an enzyme where the substrate binds to. • - A bond that holds amino acids together in proteins. • - Substances that are used to start a chemical reaction. • ...

BIO 103 Quiz 2 2021-02-09

BIO 103 Quiz 2 crossword puzzle
Across
  1. In a chemical reaction, the state in which the rate of the forward reaction equals the rate of the reverse reaction
  2. A chemical element required for an organism to survive, grow, and reproduce
  3. The three dimensional space where an electron is fond 90% of the time
  4. The making and breaking of chemical bonds, leading to changes in the composition of matter
  5. The capacity to cause change, especially to do work
  6. A covalent bond between atoms that differ in electronegativity, such that shared electrons are pulled more closely to the more electronegative atom.
  7. A negatively charged ion
  8. A subatomic particle with no charge
  9. A material resulting from a chemical reaction
  10. A positively charged ion
Down
  1. the attraction of a given atom for the electrons in a covalent bond
  2. A starting material in a chemical reaction
  3. A compound resulting from the formation of an ionic bond
  4. A subatomic particle with a negative charge
  5. elements are those required by an organism in only minute quantities are called ______.
  6. A subatomic particle with a positive charge
  7. A type of weak chemical bond formed when the partial charge of H in a polar covalent bond is attracted to a partial negative charge in a different atom.
  8. Covalent bonds between two atoms that are equally electronegative are called _______.
  9. A substance that cannot be broken down into any other substance by chemical reactions

19 Clues: A negatively charged ion • A positively charged ion • A subatomic particle with no charge • A starting material in a chemical reaction • A subatomic particle with a negative charge • A subatomic particle with a positive charge • A material resulting from a chemical reaction • The capacity to cause change, especially to do work • ...

Chapter 7 Vocab 2024-01-02

Chapter 7 Vocab crossword puzzle
Across
  1. reaction a chemical reaction that releases energy by light or heat
  2. reaction chemical reaction that involves a transfer of electrons between two species.
  3. reaction one of the major classes of chemical reactions
  4. reaction a reaction in which a compound breaks down into two or more simpler substances.
  5. a substance that takes part in and undergoes change during a reaction.
  6. energy the energy stored in the bonds of chemical compound
  7. a thing or person that is the result of an action or process.
  8. reaction any chemical reaction that absorbs heat from its environment.
  9. reaction a reaction in which the positive and negative ions of two ionic compounds exchange places to form two new compounds.
  10. reaction a reaction in which a substance reacts with oxygen gas, releasing energy in the form of light and heat
Down
  1. a multiplier or factor that measures some property.
  2. equation a representation of a chemical reaction using symbols of the elements to indicate the amount of substance
  3. reaction a reaction in which one element replaces a similar element in a compound
  4. the amount of substance of a system which contains as many elementary entities as there are atoms in 0.012 kilogram of carbon-12.
  5. mass the ratio between the mass and the amount of substance (measured in moles) of any sample

15 Clues: a multiplier or factor that measures some property. • reaction one of the major classes of chemical reactions • energy the energy stored in the bonds of chemical compound • a thing or person that is the result of an action or process. • reaction a chemical reaction that releases energy by light or heat • ...

Physical Changes & Chemical Reactions 2014-04-30

Physical Changes & Chemical Reactions crossword puzzle
Across
  1. The term used to describe a solid turning into a liquid
  2. The term used to describe a liquid turning into a gas
  3. A physical process where a solid breaks up in a liquid
  4. A _________ change can be an indication of a chemical change
  5. When two substances are combined together but can still be physically separated
  6. Chemical changes are generally ___________; the original substances cannot be restored
  7. Physical changes are generally ___________; the original substance can be restored
  8. In a ________________ change no new substances are formed
  9. During some chemical reactions _________ is released in the form of heat, sound or light
Down
  1. In a __________ reaction new substances are formed
  2. The substances you have at the beginning of a chemical reaction
  3. The substances you have at the end of a chemical reaction
  4. The term used to describe a gas turning into a liquid
  5. During ______________ particles move closer together, causing the volume of the substance to decrease
  6. If ___________ are produced during a chemical reaction it indicates a gas is being released
  7. The solid formed during a chemical reaction with two liquids
  8. The term used to describe a liquid turning into a solid
  9. During ______________ particles move further away from each other, causing the volume of the substance to increase
  10. Some chemical reactions must absorb energy in the form of _________ in order to occur

19 Clues: In a __________ reaction new substances are formed • The term used to describe a gas turning into a liquid • The term used to describe a liquid turning into a gas • A physical process where a solid breaks up in a liquid • The term used to describe a solid turning into a liquid • The term used to describe a liquid turning into a solid • ...

Physical Changes & Chemical Reactions 2014-04-30

Physical Changes & Chemical Reactions crossword puzzle
Across
  1. In a __________ reaction new substances are formed
  2. The term used to describe a liquid turning into a solid
  3. A physical process where a solid breaks up in a liquid
  4. If ___________ are produced during a chemical reaction it indicates a gas is being released
  5. The term used to describe a solid turning into a liquid
  6. The term used to describe a liquid turning into a gas
  7. In a ________________ change no new substances are formed
  8. Chemical changes are generally ___________; the original substances cannot be restored
  9. During ______________ particles move further away from each other, causing the volume of the substance to increase
  10. During ______________ particles move closer together, causing the volume of the substance to decrease
Down
  1. The substances you have at the end of a chemical reaction
  2. The term used to describe a gas turning into a liquid
  3. Physical changes are generally ___________; the original substance can be restored
  4. When two substances are combined together but can still be physically separated
  5. The solid formed during a chemical reaction with two liquids
  6. Some chemical reactions must absorb energy in the form of _________ in order to occur
  7. The substances you have at the beginning of a chemical reaction
  8. During some chemical reactions _________ is released in the form of heat, sound or light
  9. A _________ change can be an indication of a chemical change

19 Clues: In a __________ reaction new substances are formed • The term used to describe a gas turning into a liquid • The term used to describe a liquid turning into a gas • A physical process where a solid breaks up in a liquid • The term used to describe a liquid turning into a solid • The term used to describe a solid turning into a liquid • ...

Physical Changes & Chemical Reactions 2014-04-30

Physical Changes & Chemical Reactions crossword puzzle
Across
  1. In a ________________ change no new substances are formed
  2. The substances you have at the beginning of a chemical reaction
  3. The term used to describe a liquid turning into a gas
  4. Physical changes are generally ___________; the original substance can be restored
  5. During some chemical reactions _________ is released in the form of heat, sound or light
  6. The solid formed during a chemical reaction with two liquids
  7. The term used to describe a solid turning into a liquid
  8. The term used to describe a gas turning into a liquid
  9. A _________ change can be an indication of a chemical change
  10. In a __________ reaction new substances are formed
Down
  1. The substances you have at the end of a chemical reaction
  2. If ___________ are produced during a chemical reaction it indicates a gas is being released
  3. Chemical changes are generally ___________; the original substances cannot be restored
  4. During ______________ particles move further away from each other, causing the volume of the substance to increase
  5. The term used to describe a liquid turning into a solid
  6. Some chemical reactions must absorb energy in the form of _________ in order to occur
  7. During ______________ particles move closer together, causing the volume of the substance to decrease
  8. A physical process where a solid breaks up in a liquid
  9. When two substances are combined together but can still be physically separated

19 Clues: In a __________ reaction new substances are formed • The term used to describe a liquid turning into a gas • The term used to describe a gas turning into a liquid • A physical process where a solid breaks up in a liquid • The term used to describe a liquid turning into a solid • The term used to describe a solid turning into a liquid • ...

Physical Changes & Chemical Reactions 2014-04-30

Physical Changes & Chemical Reactions crossword puzzle
Across
  1. During ______________ particles move further away from each other, causing the volume of the substance to increase
  2. In a __________ reaction new substances are formed
  3. When two substances are combined together but can still be physically separated
  4. A physical process where a solid breaks up in a liquid
  5. Chemical changes are generally ___________; the original substances cannot be restored
  6. Physical changes are generally ___________; the original substance can be restored
  7. During ______________ particles move closer together, causing the volume of the substance to decrease
  8. The term used to describe a liquid turning into a solid
Down
  1. In a ________________ change no new substances are formed
  2. If ___________ are produced during a chemical reaction it indicates a gas is being released
  3. The substances you have at the end of a chemical reaction
  4. The substances you have at the beginning of a chemical reaction
  5. The term used to describe a solid turning into a liquid
  6. The term used to describe a gas turning into a liquid
  7. The solid formed during a chemical reaction with two liquids
  8. The term used to describe a liquid turning into a gas
  9. Some chemical reactions must absorb energy in the form of _________ in order to occur
  10. A _________ change can be an indication of a chemical change
  11. During some chemical reactions _________ is released in the form of heat, sound or light

19 Clues: In a __________ reaction new substances are formed • The term used to describe a gas turning into a liquid • The term used to describe a liquid turning into a gas • A physical process where a solid breaks up in a liquid • The term used to describe a solid turning into a liquid • The term used to describe a liquid turning into a solid • ...

Chemical Bonds, Formulas, Reactions, Equations 2022-03-06

Chemical Bonds, Formulas, Reactions, Equations crossword puzzle
Across
  1. A reaction in which one element replaces another in a compound or when two elements in different compounds trade places.
  2. Change A change in which one or more substances combine or break apart to form new substances.
  3. A substance formed as a result of a chemical reaction.
  4. A chemical reaction that breaks down compounds into simpler products.
  5. System A system in which matter can enter from or escape to the surroundings.
  6. Law of the Conservation of Mass The principle that the total amount of matter is neither created nor destroyed during any chemical or physical change.
  7. Change A change that alters the form or appearance of a material but does not make the material into another substance.
  8. A substance that enters into a chemical reaction.
  9. A solid that forms from a solution during a chemical reaction.
  10. A reaction that absorbs energy, often in the form of heat, becoming colder.
Down
  1. A number in front of a chemical formula in an equation that indicates how many molecules or atoms of each reactant and product are involved in a reaction.
  2. Equation A short, easy way to show a chemical reaction, using symbols.
  3. System A system in which no matter is allowed to enter or leave.
  4. A reaction that releases energy, usually in the form of heat, becoming warmer.
  5. A chemical reaction in which two or more simple substances combine to form a new, more complex substance.

15 Clues: A substance that enters into a chemical reaction. • A substance formed as a result of a chemical reaction. • A solid that forms from a solution during a chemical reaction. • System A system in which no matter is allowed to enter or leave. • A chemical reaction that breaks down compounds into simpler products. • ...

Photosynthesis and Cellular Respiration 2023-05-10

Photosynthesis and Cellular Respiration crossword puzzle
Across
  1. Outputs of a chemical reaction
  2. Where cellular respiration occurs
  3. Make molecules
  4. dioxide A reactant in photosynthesis
  5. A reactant in photosynthesis
  6. A process by which plants make glucose
  7. opening in plants that let CO2 in and air out
  8. Organisms that don't have mitochondria
Down
  1. A product of photosynthesis
  2. chemical reaction with oxygen
  3. The energy units that are produced from cellular respiration
  4. What gives plants their green color
  5. chemical reaction without oxygen
  6. Where chlorophyll are found
  7. Inputs of a chemical reaction
  8. Organisms stay balanced
  9. A product of photosynthesis
  10. A reactant in photosynthesis

18 Clues: Make molecules • Organisms stay balanced • A product of photosynthesis • Where chlorophyll are found • A product of photosynthesis • A reactant in photosynthesis • A reactant in photosynthesis • chemical reaction with oxygen • Inputs of a chemical reaction • Outputs of a chemical reaction • chemical reaction without oxygen • Where cellular respiration occurs • ...

Jacob Meier chapter 13 2016-10-13

Jacob Meier chapter 13 crossword puzzle
Across
  1. Description of a chemical reaction in which there is a net absorption of energy.
  2. The deterioration of a metal.
  3. energy The minimum amount of energy required in order for a chemical reaction to proceed.
  4. Description of a solution in which the hydronium ion is equal to the hydroxide ion.
  5. Description of a chemical reaction in which there is a net release of energy.
  6. The reaction substances in a chemical reaction.
Down
  1. The new materials formed in a chemical reaction.
  2. A substance that donates hydrogen ions
  3. A reaction between an acid and a base.
  4. A solution where the hydronium ion concentration is higher than the hydroxide ion.
  5. a substance that accepts hydrogen ions.
  6. A rapid exothermic oxidation.
  7. The process in which a reactant loses one or more electrons.
  8. acidity of a solution
  9. any substance that increases the rate of reaction.

15 Clues: acidity of a solution • The deterioration of a metal. • A rapid exothermic oxidation. • A substance that donates hydrogen ions • A reaction between an acid and a base. • a substance that accepts hydrogen ions. • The reaction substances in a chemical reaction. • The new materials formed in a chemical reaction. • any substance that increases the rate of reaction. • ...

Chemistry Crossword 2012-06-09

Chemistry Crossword crossword puzzle
Across
  1. Bromide the chemical name for LiBr
  2. electrons outer electrons
  3. Oxide the chemical name for BaO
  4. The Group 2 elements, the most reactive group on the periodic table
  5. a compound that separates into ions when it dissolves in water, producing a solution that conducts electricity
  6. a solid formed from the reaction of two solutions
  7. rapid reaction of a substance with oxygen to produce oxides
  8. Bond The attraction that holds oppositely charged ions together in a compound
  9. molecule a molecule consisting of only two atoms of either the same or different elements
  10. Ion an ion made up of more than one atom that acts as a single particle
  11. Property a description of a substance that does not involve forming a new substance (colour, texture and density)
  12. a chemical that is produced during a chemical reaction
  13. Property A characteristic behavior that occurs when the substance changes into something new
  14. Metal The Group 1 Elements
  15. ions that have negative charges
  16. for molecular compounds what's the prefix for 4
Down
  1. Earth Metals The Group 2 Elements
  2. acid the chemical name for HCI
  3. (II) Oxide the chemical name for PbO
  4. a chemical, present at the start of a chemical reaction, that is used up during the reaction
  5. Oxide the chemical name for BeO
  6. a particle in which atoms are joined by covalent bonds
  7. Compound a pure substance formed from two or more non-metals
  8. Neither acidic or basic; with a pH of 7
  9. ions with a positive charge
  10. Gases The Group 18 elements

26 Clues: electrons outer electrons • Metal The Group 1 Elements • ions with a positive charge • Gases The Group 18 elements • acid the chemical name for HCI • Oxide the chemical name for BaO • Oxide the chemical name for BeO • ions that have negative charges • Earth Metals The Group 2 Elements • Bromide the chemical name for LiBr • (II) Oxide the chemical name for PbO • ...

Chemistry Crossword 2012-06-09

Chemistry Crossword crossword puzzle
Across
  1. Metal The Group 1 Elements
  2. The Group 2 elements, the most reactive group on the periodic table
  3. Bromide the chemical name for LiBr
  4. Earth Metals The Group 2 Elements
  5. a solid formed from the reaction of two solutions
  6. acid the chemical name for HCI
  7. a particle in which atoms are joined by covalent bonds
  8. (II) Oxide the chemical name for PbO
  9. rapid reaction of a substance with oxygen to produce oxides
  10. a chemical, present at the start of a chemical reaction, that is used up during the reaction
  11. molecule a molecule consisting of only two atoms of either the same or different elements
  12. ions that have negative charges
Down
  1. for molecular compounds what's the prefix for 4
  2. Gases The Group 18 elements
  3. Oxide the chemical name for BaO
  4. Compound a pure substance formed from two or more non-metals
  5. Ion an ion made up of more than one atom that acts as a single particle
  6. Neither acidic or basic; with a pH of 7
  7. electrons outer electrons
  8. a compound that separates into ions when it dissolves in water, producing a solution that conducts electricity
  9. Oxide the chemical name for BeO
  10. a chemical that is produced during a chemical reaction
  11. Property a description of a substance that does not involve forming a new substance (colour, texture and density)
  12. Property A characteristic behavior that occurs when the substance changes into something new
  13. ions with a positive charge
  14. Bond The attraction that holds oppositely charged ions together in a compound

26 Clues: electrons outer electrons • Metal The Group 1 Elements • Gases The Group 18 elements • ions with a positive charge • acid the chemical name for HCI • Oxide the chemical name for BaO • Oxide the chemical name for BeO • ions that have negative charges • Earth Metals The Group 2 Elements • Bromide the chemical name for LiBr • (II) Oxide the chemical name for PbO • ...

Chemical reaction 2021-02-04

Chemical reaction crossword puzzle
Across
  1. the starting substance in a chemical-
  2. process when atoms rearrange
  3. image or diagram
  4. Tiny pieces that all matter is made of
Down
  1. something made of the same atoms/group
  2. atoms grouped together in a certain way
  3. substance written in letter and
  4. atoms
  5. something observed about a substance

9 Clues: atoms • image or diagram • process when atoms rearrange • substance written in letter and • something observed about a substance • the starting substance in a chemical- • something made of the same atoms/group • Tiny pieces that all matter is made of • atoms grouped together in a certain way

Sam Cobb Science Crossword 2020-04-16

Sam Cobb Science Crossword crossword puzzle
Across
  1. only in plant cells strong and stiff
  2. the brain of a cell
  3. when a high concentration of matter flows to a low
  4. when cell membranes regulate the molecules that enter
  5. when a reaction absorbs heat, product is hotter
  6. what blood vessels do so blood stays away from skin
  7. "Powerhouse" of the cell
  8. chemical method of changing chemical compounds
Down
  1. part of cell is full of holes flexible and thin
  2. storage tanks of cells
  3. found in plant cells, green and makes food
  4. total kinetic energy of the tiny particles
  5. brain of the cell
  6. substances that are yielded from a chemical reaction
  7. Fluid in a cell that holds organelles in place
  8. substances initially involved in a chemical reaction
  9. pandemic of 2020
  10. what the blood vessels near the surface do to cool body
  11. when a reaction releases heat, product is colder
  12. cells internal organ

20 Clues: pandemic of 2020 • brain of the cell • the brain of a cell • cells internal organ • storage tanks of cells • "Powerhouse" of the cell • only in plant cells strong and stiff • found in plant cells, green and makes food • total kinetic energy of the tiny particles • Fluid in a cell that holds organelles in place • chemical method of changing chemical compounds • ...

Vocab 5 ~ Crossword Puzzle 2016-11-03

Vocab 5 ~ Crossword Puzzle crossword puzzle
Across
  1. / A solid that forms during a chemical reaction in solution
  2. reaction / Any process in which electrons are added to an atom or ion (as by removing oxygen or adding hydrogen)
  3. → A + B.
  4. number / The number of electrons an atom gains, loses or shares when it forms chemical bonds.
  5. reaction / A double displacement reaction between an acid and a base to produce a salt (ionic compound) and water (solvent). Acidic and basic properties are destroyed.
  6. replacement reaction / reactant ionic compounds exchange ions to form two new product compounds with the same ions. A+B + C+D → A+D + C+B
Down
  1. reaction / two or more reactants combine to produce a single product. A + B --> AB
  2. Reactivity / chemical bonds between atoms are broken and new ones are formed. Producing one or more different substances.
  3. reaction / one reactant yields two or more products.
  4. series / list of elements organized according to the ease with which the elements undergo chemical reactions
  5. reaction / a chemical reaction that occurs when a substance reacts with oxygen, releasing energy in the form of heat and light
  6. reaction / There is a formation of a solid (known as a precipitate). They are classified as double replacement reactions.
  7. replacement reaction / one element replaces another element in a compound A+BC --> AC + B
  8. / the amount of a substance required to form a saturated solution with specific amount of solvent at a specified temperature
  9. ionic equation / Chemical equation for a reaction which lists only those species participating in the reaction.

15 Clues: → A + B. • reaction / one reactant yields two or more products. • / A solid that forms during a chemical reaction in solution • reaction / two or more reactants combine to produce a single product. A + B --> AB • replacement reaction / one element replaces another element in a compound A+BC --> AC + B • ...

Unit 2: Chemistry of Life Vocabulary 2023-10-04

Unit 2: Chemistry of Life Vocabulary crossword puzzle
Across
  1. reaction- process that changes, or transforms, one set of chemicals into another set of chemicals
  2. complex cell that has a nucleus
  3. elements or compounds that enter into a chemical reaction
  4. of maintaining stable internal environment within a cell/organism
  5. reactant of an enzyme-catalyzed reaction
  6. reaction- a reaction that absorbs energy (absorbs heat)
  7. a complex carbohydrate made up of many monosaccharides
  8. reaction- a reaction that releases energy (gives off heat)
  9. biological catalysts
  10. reproduction-reproduction in which a single parent produces offspring, identical to the parent and each other
  11. energy- energy that is needed to get a reaction started
  12. reproduction-reproduction in which two parents produce unique offspring, different from the parents and each other
  13. made up of amino acids
  14. organism that lacks a nucleus
  15. acid- macromolecules containing hydrogen, oxygen, nitrogen, carbon, and phosphorus
  16. to which an organism responds
  17. material that organisms inherit from their parents
Down
  1. compound made up of carbon, hydrogen, and oxygen atoms; type of nutrient that is the major source of energy for the body
  2. formed as a result of a chemical reaction
  3. large organic molecule made up of many atoms (like proteins)
  4. molecules composed of many monomers; makes up macromolecules
  5. trait that an organism has that allows for it to survive and reproduce at a greater rate
  6. macromolecule made mostly from carbon and hydrogen atoms; includes fats, oils, and waxes
  7. small chemical unit that makes up a polymer
  8. substance that speeds up the rate of a chemical reaction
  9. the chemical reactions within an organism that build or break down substances
  10. simple sugar molecule
  11. acid- compound with an amino group on one end and a carboxyl group on the other end
  12. subunit of which nucleic acids are composed; made up of a 5-carbon sugar, a phosphate group, and a nitrogenous base

29 Clues: biological catalysts • simple sugar molecule • made up of amino acids • organism that lacks a nucleus • to which an organism responds • complex cell that has a nucleus • reactant of an enzyme-catalyzed reaction • formed as a result of a chemical reaction • small chemical unit that makes up a polymer • material that organisms inherit from their parents • ...

Unit 2 2025-09-25

Unit 2 crossword puzzle
Across
  1. substance that speeds up the rate of a chemical reaction
  2. bond- type of bond between atoms in which the electrons are shared
  3. capacity (specific heat)-- the amount of heat needed to raise the temperature of 1 gram of a substance 1 degree Celsius (°C)
  4. pure substance that consists entirely of one type of atom
  5. found in the nucleus that has no charge
  6. number-the number of protons in the nucleus of an atom, which determines the chemical properties of an element and its place in the periodic table (also equals the number of electrons in an element)
  7. energy- energy that is needed to get a reaction started
  8. a combination of 2 or more elements connected by bonds
  9. action-- tendency of water to rise in a thin tube
  10. reaction- a reaction that absorbs energy (absorbs heat)
  11. force of attraction between different kinds of molecules
  12. reaction- a reaction that releases energy (gives off heat)
  13. reactant of an enzyme-catalyzed reaction
  14. symbol- one- or two-letter abbreviation for a chemical element name
  15. (chemistry definition) the center of an atom, which contains the protons and neutrons
Down
  1. formed as a result of a chemical reaction
  2. electron- electron found in the outermost shell of an atom; helps to determine bonding
  3. reaction- process that changes, or transforms, one set of chemicals into another set of chemicals
  4. positively charged particle found in the nucleus of an atom
  5. charged particle that orbits the nucleus in the electron cloud
  6. basic unit of matter
  7. attraction between molecules of the same substance
  8. mass-equal to the total number of protons and neutrons in the nucleus of an atom (based on isotopes)
  9. in a molecule, uneven distribution of electrons (results in (+) and (-) poles) ex. water
  10. bonding-- weak attraction between a hydrogen atom and another atom
  11. elements or compounds that enter into a chemical reaction
  12. biological catalysts

27 Clues: basic unit of matter • biological catalysts • found in the nucleus that has no charge • reactant of an enzyme-catalyzed reaction • formed as a result of a chemical reaction • action-- tendency of water to rise in a thin tube • attraction between molecules of the same substance • a combination of 2 or more elements connected by bonds • ...

Chemical Reactions 2024-02-14

Chemical Reactions crossword puzzle
Across
  1. OUTERMOST ELECTRONS OF AN ATOM
  2. A REACTION WHERE ONE COMPOUND BREAKS APART INTO MULTIPLE ELEMENTS
  3. TYPE OF ELEMENT ON THE RIGHT 1/4 OF THE PERIODIC TABLE
  4. THE ENDING SUBSTANCES IN A CHEMICAL REACTION
  5. A SYMBOL FOR A SUBSTANCE WITH ONE CAPITAL LETTER
  6. WHEN A SUBSTANCES TURNS INTO A DIFFERENT SUBSTANCE
  7. TYPE OF ELEMENT ON THE LEFT 3/4 OF THE PERIODIC TABLE (EXCEPT HYDROGEN)
  8. LARGE NUMBER YOU PUT IN FRONT OF A CHEMICAL FORMULA WHEN YOU BALANCE AN EQUATION
  9. A SYMBOL FOR A SUBSTANCE WITH TWO OR MORE CAPITAL LETTERS
  10. AN EXPERIMENTAL SETUP THAT IS SEALED AND DOES NOT ALLOW THINGS TO GET IN OR OUT
  11. SOMETHING THAT DESCRIBES A CHEMICAL CHANGE USING NUMBERS, SYMBOLS, AND FORMULAS
  12. A REACTION WHERE TWO ELEMENTS COMBINE TO FORM A COMPOUND
Down
  1. AN ELEMENT WITH MULTIPLE POSSIBLE NUMBERS OF VALENCE ELECTRONS
  2. ANYTHING THAT HAS MASS AND TAKES UP SPACE
  3. MATTER IS NOT CREATED OR DESTROYED IN A CHEMICAL REACTION, JUST REARRANGED
  4. AN ELEMENT THAT ALWAYS GETS A SUBSCRIPT 2 WHEN ITS BY ITSELF
  5. THE STARTING SUBSTANCES IN A CHEMICAL REACTION
  6. AN EXPERIMENTAL SETUP THAT ALLOWS THINGS TO GET IN AND OUT
  7. DESCRIBES WHAT HAPPENS IN ORDER FOR A CHEMICAL CHANGE TO OCCUR
  8. A REACTION WHERE A CARBON COMPOUND BURNS IN THE PRESENCE OF OXYGEN AND PRODUCES WATER AND CARBON DIOXIDE

20 Clues: OUTERMOST ELECTRONS OF AN ATOM • ANYTHING THAT HAS MASS AND TAKES UP SPACE • THE ENDING SUBSTANCES IN A CHEMICAL REACTION • THE STARTING SUBSTANCES IN A CHEMICAL REACTION • A SYMBOL FOR A SUBSTANCE WITH ONE CAPITAL LETTER • WHEN A SUBSTANCES TURNS INTO A DIFFERENT SUBSTANCE • TYPE OF ELEMENT ON THE RIGHT 1/4 OF THE PERIODIC TABLE • ...

Science quiz 2013-07-05

Science quiz crossword puzzle
Across
  1. a hard substance
  2. any substance that undergoes a chemical change in a given reaction
  3. something used to represent something else
  4. a substance obtained from another substance through chemical change
  5. process of burning
  6. speed of a reaction
  7. breaking down
  8. the smallest componet of an element
  9. cause or affect
  10. accelerates a chemical reaction without itself being affected
  11. the periodic table is a list of?
  12. in maths a rule or principle
Down
  1. helps breaking down food
  2. outer area of an object
  3. something which is not metal
  4. used to cook a bbq
  5. composed of two or more elements
  6. a table of element
  7. hard material
  8. a combination of elements
  9. a flowing substance

21 Clues: hard material • breaking down • cause or affect • a hard substance • used to cook a bbq • a table of element • process of burning • speed of a reaction • a flowing substance • outer area of an object • helps breaking down food • a combination of elements • something which is not metal • in maths a rule or principle • composed of two or more elements • the periodic table is a list of? • ...

Lesson 1.4 Unit 1 Vocab 2020-09-14

Lesson 1.4 Unit 1 Vocab crossword puzzle
Across
  1. complex sugar; many monosaccharides linked together. ex. cellulose, starch
  2. Nucleic acid that stores genetic information
  3. Type of protein used in chemical reactions. Speed up reactions by lowering the activation energy. Shape specific.
  4. Output of a chemical reaction. What leaves the enzyme after a reaction has occurred.
  5. A reaction that breaks down molecules into smaller parts.
  6. molecule made of many smaller molecules
  7. Acid Monomer of proteins. 20 different types
  8. Acid Monomer of lipids.
  9. Acid one of the 4 essential biomolecules. DNA and RNA are examples. Used to store genetic information.
  10. Nucleic acid that transports genetic information
  11. one of the 4 essential biomolecules. Short term energy storage, structure in plants
  12. Bond Chemical bond between amino acids
  13. Monomer of Nucleic Acids. 3 parts: Sugar, phosphate, nitrogen base.
Down
  1. single sugar, simple sugar. Ex. glucose
  2. substance that increases the rate (speed) of the reaction
  3. energy Amount of energy required to start a reaction
  4. To change shape
  5. single unit, building block, subunit
  6. one of the 4 essential biomolecules. Most diverse in terms of function. Used for structure, signaling, regulation, enzymes, transport.
  7. Input of a chemical reaction. Bonds to enzyme and undergoes change.
  8. matter containing carbon
  9. A reaction that builds new molecules from smaller molecules.
  10. Input of a chemical reaction. Synonym of substrate.
  11. one of the 4 essential biomolecules. Long term energy storage and membranes. ex. phospholipids
  12. many monomers linked together, ex. macromolecules

25 Clues: To change shape • Acid Monomer of lipids. • matter containing carbon • single unit, building block, subunit • Bond Chemical bond between amino acids • single sugar, simple sugar. Ex. glucose • molecule made of many smaller molecules • Nucleic acid that stores genetic information • Acid Monomer of proteins. 20 different types • Nucleic acid that transports genetic information • ...

Michael Graham science tic tac toe--types of reactions and chemical reactions crossword puzzle 2018-03-27

Michael Graham science tic tac toe--types of reactions and chemical reactions crossword puzzle crossword puzzle
Across
  1. total mass of the reactants equals total mass of the _______
  2. equation using formulas and symbols instead of words to represent a chemical reaction
  3. a reaction where energy is absorbed
  4. most decomposition reactions require ____.
  5. during a chemical reaction, matter is not ____ or destroyed
  6. matter can enter from or escape to the surroundings
  7. AC-->A+C
  8. AB+CD-->AD+CB
  9. a number that indicates the ratio of elements in a compound
Down
  1. a reaction where energy is released
  2. occurs when a substance reacts with oxygen to produce energy in the form of heat or light
  3. matter is not allowed to enter or leave
  4. symbols and numbers that represents atoms
  5. total mass of the _____ equals total mass of the products
  6. a number in front of the element
  7. A+BC-->AC+B
  8. A+B-->AB
  9. what the arrow means
  10. during a chemical reaction, matter is not created or _____

19 Clues: AC-->A+C • A+B-->AB • A+BC-->AC+B • AB+CD-->AD+CB • what the arrow means • a number in front of the element • a reaction where energy is released • a reaction where energy is absorbed • matter is not allowed to enter or leave • symbols and numbers that represents atoms • most decomposition reactions require ____. • matter can enter from or escape to the surroundings • ...

CR& Matter Crossword 2025-08-20

CR& Matter Crossword crossword puzzle
Across
  1. A combination of substances that keep their own properties.
  2. A change that does not make a new substance (like melting ice).
  3. A force that holds atoms together in a molecule.
  4. Matter is not created or destroyed in a chemical reaction.
  5. A change that makes a new substance (like rusting or burning).
  6. A new substance formed in a chemical reaction.
  7. The smallest building block of matter.
  8. Observations or data that help explain what is happening in a reaction.
  9. of Matter The form matter takes (solid, liquid, gas).
Down
  1. A reaction that releases energy (feels warm or hot)
  2. A pure substance made of only one type of atom.
  3. Reaction A process where substances change into new substances.
  4. A reaction that absorbs energy (feels cool).
  5. The ability to cause change (often needed or released in reactions).
  6. Two or more atoms joined together.
  7. A starting substance in a chemical reaction.
  8. A substance made of different kinds of atoms bonded together.
  9. A characteristic of a substance (like color, hardness, or boiling point).
  10. A drawing, diagram, or object that helps explain something too small or complex to see directly.
  11. How much matter is in an object.

20 Clues: How much matter is in an object. • Two or more atoms joined together. • The smallest building block of matter. • A reaction that absorbs energy (feels cool). • A starting substance in a chemical reaction. • A new substance formed in a chemical reaction. • A pure substance made of only one type of atom. • A force that holds atoms together in a molecule. • ...

Garett Holmes chapter-13 2016-10-12

Garett Holmes chapter-13 crossword puzzle
Across
  1. A measure of the acidity of a solution;equal to the negative logarithm of the hydronium ion concentration.
  2. Description of a solution in which the hydronium ion concentration ion is equal to the hydroxide ion concentration.
  3. The new materials formed in a chemical reaction.
  4. Description of a chemical reaction in which there is a net release of energy.
  5. the minimum energy required in order for a chemical reaction to proceed.
  6. Description of a chemical reaction in which there is a net absorption of energy.
  7. A rapid exothermic oxidation-reduction between a material and molecular oxygen.
  8. A polyatomic ion made by adding a proton(hydrogen ion)to a water molecule.
  9. A substance that donates hydrogen ions.
Down
  1. Any substance that increases the rate of a chemical reaction without itself being consumed by the reaction.
  2. A polyatomic ion made by removing a proton(hydrogen ion)from a water molecule.
  3. When a reaction and its reverse act at the same rate.
  4. A substance that accepts hydrogen ions.
  5. The reacting substances in a chemical reaction.
  6. The energy stored in molecules that can be released during a reaction.

15 Clues: A substance that accepts hydrogen ions. • A substance that donates hydrogen ions. • The reacting substances in a chemical reaction. • The new materials formed in a chemical reaction. • When a reaction and its reverse act at the same rate. • The energy stored in molecules that can be released during a reaction. • ...

Garett O Holmes Chapter-13Chemical 2016-10-12

Garett O Holmes Chapter-13Chemical crossword puzzle
Across
  1. Description of a chemical reaction in which there is a net absorption of energy.
  2. The new materials formed in a chemical reaction.
  3. Description of a chemical reaction in which there is a net release of energy.
  4. A measure of the acidity of a solution;equal to the negative logarithm of the hydronium ion concentration.
  5. The energy stored in molecules that can be released during a reaction.
  6. A substance that donates hydrogen ions.
  7. A rapid exothermic oxidation-reduction between a material and molecular oxygen.
Down
  1. A substance that accepts hydrogen ions.
  2. When a reaction and its reverse act at the same rate.
  3. Any substance that increases the rate of a chemical reaction without itself being consumed by the reaction.
  4. A polyatomic ion made by removing a proton(hydrogen ion)from a water molecule.
  5. the minimum energy required in order for a chemical reaction to proceed.
  6. Description of a solution in which the hydronium ion concentration ion is equal to the hydroxide ion concentration.
  7. A polyatomic ion made by adding a proton(hydrogen ion)to a water molecule.
  8. The reacting substances in a chemical reaction.

15 Clues: A substance that accepts hydrogen ions. • A substance that donates hydrogen ions. • The reacting substances in a chemical reaction. • The new materials formed in a chemical reaction. • When a reaction and its reverse act at the same rate. • The energy stored in molecules that can be released during a reaction. • ...

GarettOHolmes Chapter-130 2016-10-12

GarettOHolmes Chapter-130 crossword puzzle
Across
  1. A measure of the acidity of a solution;equal to the negative logarithm of the hydronium ion concentration.
  2. A polyatomic ion made by adding a proton(hydrogen ion)to a water molecule.
  3. The energy stored in molecules that can be released during a reaction.
  4. Any substance that increases the rate of a chemical reaction without itself being consumed by the reaction.
  5. A substance that accepts hydrogen ions.
  6. Description of a chemical reaction in which there is a net absorption of energy.
  7. The new materials formed in a chemical reaction.
Down
  1. A polyatomic ion made by removing a proton(hydrogen ion)from a water molecule.
  2. A rapid exothermic oxidation-reduction between a material and molecular oxygen.
  3. A substance that donates hydrogen ions.
  4. the minimum energy required in order for a chemical reaction to proceed.
  5. When a reaction and its reverse act at the same rate.
  6. The reacting substances in a chemical reaction.
  7. Description of a chemical reaction in which there is a net release of energy.
  8. Description of a solution in which the hydronium ion concentration ion is equal to the hydroxide ion concentration.

15 Clues: A substance that donates hydrogen ions. • A substance that accepts hydrogen ions. • The reacting substances in a chemical reaction. • The new materials formed in a chemical reaction. • When a reaction and its reverse act at the same rate. • The energy stored in molecules that can be released during a reaction. • ...

Observing Chemical Change 2022-03-18

Observing Chemical Change crossword puzzle
Across
  1. A rapid reaction between oxygen and a substance called fuel
  2. reaction in which energy is absorbed.
  3. Matter can enter from or escape to the surroundings.
  4. A material used to decrease the rate of a reaction.
  5. in front of chemical formula in an equation.
  6. in your body contain biological catalysts.
  7. Substances you have at the
  8. material that increases the rate of a reaction by lowering the activation energy
  9. One element replaces another in a compound or when two elements in different compounds trade places.
  10. reaction, using symbols instead of words.
  11. A solid that forms from solution during a chemical reaction
  12. A short,easy way to show a
  13. Characteristics of a substance that describes its ability to change into other substances.
  14. Matter is not allowed to enter or leave.
  15. that has mass and takes up space.
  16. A characteristic of a substance that can be observed without changing the substance
Down
  1. reaction that releases energy in the for of heat.
  2. Material that releases energy when it burns.
  3. Minimum amount of energy needed to start a chemical reaction
  4. When the reaction is complete, you have a new substance
  5. A change that alters the form or appearance of a substance but that does not make the substance into another substance.
  6. Amount of a substance in a given volume
  7. A Principle
  8. A change in matter that produces one or more new substances is a chemical change.
  9. in contrast to a synthesis reaction.
  10. The study of matter and how matter changes.
  11. When two or more elements or compounds combine to make a more complex substance.

27 Clues: A Principle • Substances you have at the • A short,easy way to show a • that has mass and takes up space. • in contrast to a synthesis reaction. • reaction in which energy is absorbed. • Amount of a substance in a given volume • Matter is not allowed to enter or leave. • reaction, using symbols instead of words. • in your body contain biological catalysts. • ...

Garett O Holmes Chapter-13 2016-10-12

Garett O Holmes Chapter-13 crossword puzzle
Across
  1. Description of a chemical reaction in which there is a net release of energy.
  2. the minimum energy required in order for a chemical reaction to proceed.
  3. The reacting substances in a chemical reaction.
  4. A polyatomic ion made by adding a proton(hydrogen ion)to a water molecule.
  5. Description of a chemical reaction in which there is a net absorption of energy.
  6. A substance that accepts hydrogen ions.
  7. The new materials formed in a chemical reaction.
Down
  1. A polyatomic ion made by removing a proton(hydrogen ion)from a water molecule.
  2. A rapid exothermic oxidation-reduction between a material and molecular oxygen.
  3. When a reaction and its reverse act at the same rate.
  4. The energy stored in molecules that can be released during a reaction.
  5. A measure of the acidity of a solution;equal to the negative logarithm of the hydronium ion concentration.
  6. Any substance that increases the rate of a chemical reaction without itself being consumed by the reaction.
  7. Description of a solution in which the hydronium ion concentration ion is equal to the hydroxide ion concentration.
  8. A substance that donates hydrogen ions.

15 Clues: A substance that accepts hydrogen ions. • A substance that donates hydrogen ions. • The reacting substances in a chemical reaction. • The new materials formed in a chemical reaction. • When a reaction and its reverse act at the same rate. • The energy stored in molecules that can be released during a reaction. • ...

POV: I told a chemistry joke in class, but there was no reaction 2023-08-21

POV: I told a chemistry joke in class, but there was no reaction crossword puzzle
Across
  1. A combination of two or more substances in which each keeps its own properties,
  2. of conservation of mass; The mass of substances before a chemical reaction is the same as the mass of substances after the reaction,
  3. The small number beside a chemical symbol, letting you know how many atoms are in the reaction
  4. A solid formed from two or more elements, with fixed proportions,
  5. change; the type of change where the molecules chemical composition does not change
  6. A chemical reaction in which heat is absorbed from the surroundings,
  7. The number of atoms of each element must be the same on both sides of a balanced chemical equation,
  8. A substance formed from two or more elements that are chemically combined,
Down
  1. Substance that takes part in a chemical reaction,
  2. A type of chemical reaction in which a compound breaks down into simpler substances, Physical; The type of change where a substance changes its physical appearance, but not its chemical composition,
  3. The process by which a solid turns into a liquid,
  4. change; The type of change where a new substance with different properties is formed and bonds are broken,
  5. A reaction in which two or more substances combine to form a new substance,
  6. The smallest unit of an element that retains its properties,
  7. The type of reaction that releases energy in the form of light or heat.
  8. A substance that cannot be broken down into simpler substances by chemical means, made up of only one type of atom,

16 Clues: Substance that takes part in a chemical reaction, • The process by which a solid turns into a liquid, • The smallest unit of an element that retains its properties, • A solid formed from two or more elements, with fixed proportions, • A chemical reaction in which heat is absorbed from the surroundings, • ...

Crossword: Chemistry MA 2025-04-29

Crossword: Chemistry MA crossword puzzle
Across
  1. Reaction in which a single compound breaks down to form two or more products
  2. Reaction in which an element displaces another element from its solution
  3. The reactions which require energy
  4. The substance/substances which undergo chemical change and is found on the left side of the chemical equation
  5. When fats and oils are oxidised they become
  6. Decomposition reaction carried via heating
  7. Decomposition reaction carried via electric current
  8. Two or more substances combine to form a single product
Down
  1. Loss of oxygen or gain of hydrogen
  2. Decomposition reaction carried via light
  3. Type of reaction in which precipitate is formed
  4. When a metal is attacked by substances around it
  5. The reactions which release energy, usually in the form of heat
  6. chemical reaction where a substance reacts with oxygen, releasing heat and light
  7. Combining power of an element
  8. The new substance/substances formed on the right side of a chemical equation.
  9. Reaction where one reactant gets oxidised while other gets reduced

17 Clues: Combining power of an element • Loss of oxygen or gain of hydrogen • The reactions which require energy • Decomposition reaction carried via light • Decomposition reaction carried via heating • When fats and oils are oxidised they become • Type of reaction in which precipitate is formed • When a metal is attacked by substances around it • ...

Chemical Changes 2023-04-24

Chemical Changes crossword puzzle
Across
  1. ____________ is sometimes taken in or given out during a chemical reaction.
  2. During a chemical reaction, mass is conserved.
  3. A change in which new substances are formed is called a ____________ change.
  4. During respiration, ____________ is broken down in the presence of oxygen to form carbon dioxide and water.
  5. Substances that react with each other are known as ____________.
  6. Rusting occurs when _________ reacts with oxygen and water.
  7. Light and heat are usually given out during ____________.
  8. In a word equation, products are shown are shown on the ______-hand side.
  9. Word equations include the reactants, products and ____________ under which a chemical reaction occurs.
  10. The mass of the reactants is ____________ to the mass of the products in a chemical reaction.
Down
  1. During combustion, a substance is heated in the presence of ____________ to form a one or more new susbtances.
  2. Thermal ____________ occurs when a substance breaks down into simpler substances upon heating.
  3. Chemical changes are usually ____________.
  4. An example of an oxidation reaction is cellular _______________.
  5. When a substance gains oxygen, it undergoes ____________.
  6. An ____________ instead of an '=' sign is used in qord equations.
  7. Substances formed at the end of a reaction are known as ____________.
  8. Calcium ____________ is an example of a substance that undergoes thermal decomposition upon heating.
  9. In a word equation, reactants are shown on the ______-hand side.

19 Clues: Chemical changes are usually ____________. • During a chemical reaction, mass is conserved. • When a substance gains oxygen, it undergoes ____________. • Light and heat are usually given out during ____________. • Rusting occurs when _________ reacts with oxygen and water. • An example of an oxidation reaction is cellular _______________. • ...

Chemical Reactions 2024-03-06

Chemical Reactions crossword puzzle
Across
  1. right side of a chemical equation
  2. left side of a chemical equation
  3. means "produces"
  4. a chemical ___________ is a way to diagram a reaction
  5. absorbs energy
  6. conservation of __________
  7. energy of reaction
  8. releases energy
Down
  1. measures average heat
  2. tells how many atoms of a particular element are in a compound
  3. ______________ energy
  4. lowers activation energy
  5. covalent compound
  6. __________ theory states that the rate of reaction depends on orientation and energy
  7. number used to balance a chemical equation
  8. transition ________________
  9. what makes up a compound

17 Clues: absorbs energy • releases energy • means "produces" • covalent compound • energy of reaction • measures average heat • ______________ energy • lowers activation energy • what makes up a compound • conservation of __________ • transition ________________ • left side of a chemical equation • right side of a chemical equation • number used to balance a chemical equation • ...