chemical reaction Crossword Puzzles

Chapter 2 2022-10-04

Chapter 2 crossword puzzle
Across
  1. A reaction that releases thermal energy.
  2. The small amount of energy needed to start a reaction.
  3. A reaction that switches places forming a new compound.
  4. A chemical reaction that produces carbon dioxide and water.
  5. A chemical reaction that has two substances combine to make a compound.
  6. The starting substances in a chemical reaction.
Down
  1. A process in which atoms rearrange to form a new substance.
  2. substance that increase reaction rate by lowering the activation energy.
  3. A reaction that absorbs energy.
  4. A catalyst that speeds up a reaction.
  5. The substances produced by a chemical reaction.
  6. A chemical reaction when one compound breaks down into two substances.
  7. A substance that slows or stops a reaction.

13 Clues: A reaction that absorbs energy. • A catalyst that speeds up a reaction. • A reaction that releases thermal energy. • A substance that slows or stops a reaction. • The substances produced by a chemical reaction. • The starting substances in a chemical reaction. • The small amount of energy needed to start a reaction. • ...

Chapter 2 2022-10-04

Chapter 2 crossword puzzle
Across
  1. A reaction that releases thermal energy.
  2. The small amount of energy needed to start a reaction.
  3. A reaction that switches places forming a new compound.
  4. A chemical reaction that produces carbon dioxide and water.
  5. A chemical reaction that has two substances combine to make a compound.
  6. The starting substances in a chemical reaction.
Down
  1. A process in which atoms rearrange to form a new substance.
  2. substance that increase reaction rate by lowering the activation energy.
  3. A reaction that absorbs energy.
  4. A catalyst that speeds up a reaction.
  5. The substances produced by a chemical reaction.
  6. A chemical reaction when one compound breaks down into two substances.
  7. A substance that slows or stops a reaction.

13 Clues: A reaction that absorbs energy. • A catalyst that speeds up a reaction. • A reaction that releases thermal energy. • A substance that slows or stops a reaction. • The substances produced by a chemical reaction. • The starting substances in a chemical reaction. • The small amount of energy needed to start a reaction. • ...

Chemistry Unit Study Guide 2016-02-10

Chemistry Unit Study Guide crossword puzzle
Across
  1. mix of nonmetals and metals
  2. Columns of elements
  3. Center of an atom
  4. Has neutral charge
  5. states mass can neither be created nor destroyed in a chemical reaction or physical change
  6. reaction that occurs in which a layer of metal is bonded to the surface of another substance
  7. Conductors of electricity, malleable, ductile
  8. a combination of atoms bonded together
  9. Material that cannot be broken down into a more fundamental substance
  10. Chemical reaction that gives off energy
  11. Has negative charge
  12. Has positive charge
Down
  1. Region of space around the nucleus of an atom where an electron is likely to be found
  2. Mass of chemical element
  3. Elements that come out of a reaction
  4. Row of elements
  5. Chemical reaction that absorbs enter
  6. First person to draw periodic table
  7. Element that lacks metallic attributes
  8. Number of protons in atom
  9. Outermost electron
  10. All elements in far right Group
  11. letter(s) that an element is paired with
  12. Basic unit of a chemical element
  13. elements that are put in a reaction
  14. pure substance of two or more different kinds of atoms bonded together

26 Clues: Row of elements • Center of an atom • Has neutral charge • Outermost electron • Columns of elements • Has negative charge • Has positive charge • Mass of chemical element • Number of protons in atom • mix of nonmetals and metals • All elements in far right Group • Basic unit of a chemical element • First person to draw periodic table • elements that are put in a reaction • ...

Vocab 2021-11-30

Vocab crossword puzzle
Across
  1. replacement,a chemical reaction which the negative ions in two compounds switch place forming two new compounds
  2. reaction,a process in which atoms of one or more substances rearrange to form into new substances
  3. a chemical reaction that releases thermal energy
  4. a substance that slows or even stopa a chemical reaction
  5. a chemical reaction in which a substance combines with oxygen and releases speicies
  6. replacement, a type of chemical reaction in which one element replaces another element in a compound
  7. a type of chemical reaction in which two or more substances combine and form one compound
Down
  1. a chemical reaction that aborbes thermal energy
  2. equation, a description of a reaction using element symbols and chemical formulus
  3. of conservation of mass, law that states that the total mass of the reactants before a chemical reaction is the same as the total mass of the products after a chemical reaction.
  4. a type of chemical reaction in which one compound breaks down and forms two or more substances
  5. energy, the minimum amount of energy required to start a chemical reaction in which the negative ions in two compounds switch place forming two new compounds
  6. a substance that increases the rate by lowering the activation energy of reaction

13 Clues: a chemical reaction that aborbes thermal energy • a chemical reaction that releases thermal energy • a substance that slows or even stopa a chemical reaction • equation, a description of a reaction using element symbols and chemical formulus • a substance that increases the rate by lowering the activation energy of reaction • ...

Chapter 7- Chemical Reactions 2021-12-18

Chapter 7- Chemical Reactions crossword puzzle
Across
  1. a substance that undergoes change in a chemical reaction
  2. numbers that appear before a formula in a chemical equation to show the relative proportions of each reactant and product
  3. new substances formed as a result of a chemical reaction
  4. an amount of a substance that contains approximately 6.02 x 10^23 particles of the substance
  5. a chemical reaction in which two or more substances react to form a single substance
  6. a representation of a chemical reaction in which the reactants and products are expressed as a formula
  7. a chemical reaction that absorbs energy from its surroundings
Down
  1. a chemical reaction in which two compounds exchange positive ions and form two new compounds
  2. a representation of a chemical reaction in which the reactants and products are expressed as formulas
  3. a chemical reaction in which one element takes the place of another element in a compound
  4. a chemical reaction in which a compound breaks down into two or more simpler substances
  5. the mass of one mole of a substance
  6. a chemical reaction that releases energy to its surroundings

13 Clues: the mass of one mole of a substance • a substance that undergoes change in a chemical reaction • 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 • ...

Unit 8: Nomenclature Review 2024-05-13

Unit 8: Nomenclature Review crossword puzzle
Across
  1. the ending substances in a chemical reaction
  2. a reaction in which 1 substance breaks down into 2 or more products
  3. a solid formed in an aqueous reaction
  4. a reaction in which both reactants are dissociated in water, and one of the products must be a precipitate, gas, or water (2 words)
  5. when a substance can be dissolved in something else
  6. an equation that shows only the species that are involved in the aqueous reaction (2 words)
  7. a method of representing chemical reactions using arrows, chemical formulas, and coefficients (2 words)
  8. a reaction in which 2 substances combine to create 1 product
Down
  1. a reaction that consumes oxygen gas and produces heat and light
  2. species in an aqueous reaction that do not participate in the actual reaction (2 words)
  3. the solvent in aqueous solutions
  4. a reaction in which 2 ionic compounds react by swapping cations (2 words)
  5. the substance that does the dissolving in a solution
  6. a process by which the atoms of one or more substances rearrange, form new bonds, and become different substances (2 words)
  7. elements that will bond with themselves in pairs in their pure state
  8. the starting substances in a chemical reaction
  9. a reaction in which a pure element reacts with a compound (2 words)
  10. substances that are able to dissolve or dissociate in water
  11. the substance that is dissolved in a solution

19 Clues: the solvent in aqueous solutions • a solid formed in an aqueous reaction • the ending substances in a chemical reaction • the substance that is dissolved in a solution • the starting substances in a chemical reaction • when a substance can be dissolved in something else • the substance that does the dissolving in a solution • ...

DGS Yr7 Chemical Reactions 2023-02-20

DGS Yr7 Chemical Reactions crossword puzzle
Across
  1. (3 words) the principle that in any chemical reaction the total mass of the reactants is equal to the total mass of the products
  2. (2 words) a change in which the form of substances change but the composition remains the same - generally reversible
  3. a chemcial reaction in which energy is transferred from the thermal store of the surroundings to the chemical store of the reactants and products
  4. (2 words) a reaction in which atoms are rearranged to form new substances - generally irreversible
  5. (2 words) variables that may assume any value in a range e.g. mass of students in a class
  6. a chemcial reaction in which energy is transferred from the chemical store of the reactants and products to the thermal store of the surroundings
  7. the substances that are formed in a chemical reaction
  8. a chemical reaction in which compound breaks down into simpler compounds or elements
  9. (2 words) fuels derived from the breakdown of living things over millions of years to form oil and natural gas
Down
  1. (2 words) variables that occupy entirely separate categories e.g. types of fruit
  2. (2 words) cannot be replaced once they have been used
  3. the process whereby a substance burns
  4. the starting substances in a chemical reaction
  5. a chemical reaction in which a substance combine with oxygen
  6. a substance that speeds up a chemical reaction but is not used up in the reaction
  7. a substance that burns to transfer energy by heating in a useful way

16 Clues: the process whereby a substance burns • the starting substances in a chemical reaction • (2 words) cannot be replaced once they have been used • the substances that are formed in a chemical reaction • a chemical reaction in which a substance combine with oxygen • a substance that burns to transfer energy by heating in a useful way • ...

Chaps 6-7 Vocab 2024-04-02

Chaps 6-7 Vocab crossword puzzle
Across
  1. notation that shows what elements a compound contains and the ratio of the atoms or ions of these elements in the compound
  2. the force that holds cations and anions together
  3. a chemical reaction in which one element takes the place of another element in a compound
  4. a chemical reaction in which two or more substances react to form a single substance
  5. new substances formed as a result of a chemical reaction
  6. a chemical bond in which two atoms share a pair of valence electrons
  7. an ion with a negative charge
  8. the attraction between a metal cation and the shared electrons that surround it
  9. a substance that undergoes change in a chemical reaction
Down
  1. a chemical reaction in which a compound breaks down into two or more simpler substances
  2. a representation of a chemical reaction in which the reactants and products are expressed as formulas
  3. a neutral group of atoms that are joined together by one or more covalent bonds
  4. an ion with a positive charge
  5. the force that holds atoms or ions together as a unit
  6. a diagram of an atom, ion or molecule in which each dot represents a valence electron
  7. numbers that appear before a formula in a chemical equation to show the relative proportions of each reactant and product
  8. a chemical reaction in which two compounds exchange positive ions and form new compounds
  9. a mixture of two or more elements, at least one of which is a metal, that has the characteristic properties of a metal
  10. an atom or group of atoms that has a positive or negative charge

19 Clues: an ion with a positive charge • an ion with a negative charge • the force that holds cations and anions together • the force that holds atoms or ions together as a unit • new substances formed as a result of a chemical reaction • a substance that undergoes change in a chemical reaction • an atom or group of atoms that has a positive or negative charge • ...

The Reaction on the Storyboard: Vocabulary Assignment 2014-01-14

The Reaction on the Storyboard: Vocabulary Assignment crossword puzzle
Across
  1. displacement reaction\ is characterized by one element being displaced from a compound by another element.
  2. the increase in the rate of a chemical reaction due to the participation of a substance.
  3. Reaction\ one of the most common types of chemical reactions.
  4. a substance participating in a chemical reaction, especially a directly reacting substance present at the initiation of the reaction.
Down
  1. the formation of a solid in a solution or inside another solid during a chemical reaction or by diffusion in a solid.
  2. this is used in math when you multiply.
  3. Relating to, similar to, containing, or dissolved in water.
  4. Reaction\ a major class of chemical reactions.
  5. Equation\ this has reactants and products.
  6. displacement reaction\ a type of reaction where part of of one reactant is replaced by part of another reactant.
  7. Molecule\ are molecules composed of only two atoms, of either the same or different chemical elements.
  8. of Conservation of Mass\ states that mass is neither created nor destroyed in any ordinary chemical reaction.
  9. Reaction\ a type of chemical reaction in which two or more simple substances combine to form a more complex product.

13 Clues: this is used in math when you multiply. • Equation\ this has reactants and products. • Reaction\ a major class of chemical reactions. • Relating to, similar to, containing, or dissolved in water. • Reaction\ one of the most common types of chemical reactions. • the increase in the rate of a chemical reaction due to the participation of a substance. • ...

Stoichiometry Terms 2017-02-09

Stoichiometry Terms crossword puzzle
Across
  1. this reactant is not fully consumed in a chemical reaction
  2. a mass unit
  3. His number is 6.02x10^23 molecules
  4. roman numerals represent a transition metals ___________.
  5. the number that goes before the formulas in a balanced chemical equation
  6. the mathematical process of determining amounts of products or reactants needed in a chemical reaction
  7. this increases the rate of a reaction
  8. the total mass of all the atoms in a compound (no space between words)
Down
  1. this property is always conserved in a chemical reaction
  2. the number(s) in a chemical formula that represent the number of individual atoms present
  3. ___________ analysis
  4. you must use this to convert from one substance to another(no space between words)
  5. the calculated yield
  6. the amount of product produced when performing a reaction in the lab
  7. this reactant determine the amount that can be produced in a chemical reaction
  8. Another name for a mole ratio is a mole ______.

16 Clues: a mass unit • ___________ analysis • the calculated yield • His number is 6.02x10^23 molecules • this increases the rate of a reaction • Another name for a mole ratio is a mole ______. • this property is always conserved in a chemical reaction • roman numerals represent a transition metals ___________. • this reactant is not fully consumed in a chemical reaction • ...

Jack Schwab-Ch13 crossword 2016-10-11

Jack Schwab-Ch13 crossword crossword puzzle
Across
  1. one half of an oxidation-reduction reaction, represented by an equation showing electrons as either reactants or products.
  2. Description of a solution in which the hydronium ion concentration is higher than the hydroxide ion concentration.
  3. The measurement of the acidity of a solution.
  4. A representation of a chemical reaction in which reactants are written to the left of an arrow that points toward the products on the right,
  5. The minimum energy in order for a chemical reaction to proceed.
  6. A rapid exothermic oxidation-reduction reaction between a material and molecular oxygen.
Down
  1. The reacting substances in a chemical reaction
  2. Description of a chemical reaction in which there is a net release of energy.
  3. The new materials formed in a chemical reaction.
  4. Matter is neither created nor destroyed during a chemical reaction.
  5. Description of a chemical reaction in which there is a net absorption of energy.
  6. A reaction between an acid and a base.
  7. The process by which a reactant loses one or more electrons.
  8. Description of a solution in which the hydronium ion concentration is equal to the hydroxide ion concentration.
  9. Description of a solution in which the hydroxide ion concentration is higher than they hydronium ion concentration.

15 Clues: A reaction between an acid and a base. • The measurement of the acidity of a solution. • The reacting substances in a chemical reaction • The new materials formed in a chemical reaction. • The process by which a reactant loses one or more electrons. • The minimum energy in order for a chemical reaction to proceed. • ...

Science Ten 2011-12-13

Science Ten crossword puzzle
Across
  1. a negatively charged ion, the result of gaining one or more electrons
  2. a positively charged ion, the result of losing one or more electrons
  3. energy
  4. a PH of 7
  5. when organic molecules burn
  6. a solid substance that forms when two liquids are mixed
  7. are negative
  8. substances that form n a chemical reaction
  9. can be divided into 2 groups
  10. a substance that can accept hydrogen ions
Down
  1. a chemical substance that neutralizes alkis
  2. provide evidence that a chemical reaction might have taken place
  3. a change when a substance changes to a new substance
  4. energy is absorbed from the surroundings
  5. have 2 or more different elements in a proportion
  6. cannot be created or destroyed
  7. a change where the properties do not change
  8. explaining an observation in terms of previous experience
  9. found in the periodic table
  10. substances that undergo change in a chemical reaction
  11. appear to be one substance but is a combination
  12. is lost or gained in every chemical reaction

22 Clues: energy • a PH of 7 • are negative • when organic molecules burn • found in the periodic table • can be divided into 2 groups • cannot be created or destroyed • energy is absorbed from the surroundings • a substance that can accept hydrogen ions • substances that form n a chemical reaction • a chemical substance that neutralizes alkis • a change where the properties do not change • ...

Claire Y 2024-05-15

Claire Y crossword puzzle
Across
  1. the smallest unit of an element
  2. a link between atoms in molecules or compounds
  3. the transfer of thermal energy
  4. the ability to do work or cause change
  5. the substances that are formed during a chemical reaction; in a chemical reaction the arrows point toward the product
  6. a science that deals with the composition, structure, and properties of substances
  7. a chemical reaction that absorbs heat energy
  8. it takes up space and has mass
  9. a substance that can be added to a reaction to increase the reaction rate without getting consumed in the process
Down
  1. a combination of substances that can be physically separated from one another
  2. two or one atoms joined together
  3. chemical reaction that gives off heat energy
  4. a measure of the average kinetic energy of the atoms in a system, used to express thermal energy in degrees
  5. the substances present before a chemical reaction occurs
  6. the amount of space that an object occupies
  7. an action taken in response to something
  8. the ability of molecules of the same substance to stick together

17 Clues: the transfer of thermal energy • it takes up space and has mass • the smallest unit of an element • two or one atoms joined together • the ability to do work or cause change • an action taken in response to something • the amount of space that an object occupies • chemical reaction that gives off heat energy • a chemical reaction that absorbs heat energy • ...

Chemical Reactions 2024-04-19

Chemical Reactions crossword puzzle
Across
  1. process in which one or more substances are changed into new substances
  2. chemical reaction in which one substance breaks down into two or more substances
  3. chemical reaction in which two or more substances combine to form a different substance
  4. the gain of electrons by the atoms of a substance in a chemical reaction
  5. chemical reaction that releases some form of energy, such as light or thermal energy
  6. substance that speeds up a chemical reaction without being permanently changed itself
  7. in a chemical reaction, the substance that reacts
Down
  1. chemical reaction that requires energy input in the form of light, thermal energy or electricity in order to proceed
  2. number in a chemical equation that represents the number of units of each substance taking part in a chemical reaction
  3. chemical reaction in which energy is primarily given off in the form of thermal energy
  4. in a chemical reaction, the new substance or substances formed
  5. chemical reaction that requires thermal energy in order to proceed

12 Clues: in a chemical reaction, the substance that reacts • in a chemical reaction, the new substance or substances formed • chemical reaction that requires thermal energy in order to proceed • process in which one or more substances are changed into new substances • the gain of electrons by the atoms of a substance in a chemical reaction • ...

Science 2022-03-18

Science crossword puzzle
Across
  1. does not allow matter to enter or leave, but does allow energy to enter or leave.
  2. is any process with an increase in the enthalpy H of the system.
  3. is the process or effect of simplifying a single chemical entity into two or more fragments
  4. a chemical reaction between substances
  5. the process of increasing the rate of a chemical reaction
  6. a substance that takes part in and undergoes change during a reaction.
  7. property that is measurable, whose value describes a state of a physical system.
  8. system that can freely exchange matter and energy with its surroundings.
  9. when a substance combines with another to form a new substance, called chemical synthesis
  10. A number placed in front of a formula to balance a chemical equation.
  11. material that can be made to react with other substances
  12. the abundance of a constituent divided by the total volume of a mixture.
  13. he process of transforming a dissolved substance into an insoluble solid
  14. affecting the form of a chemical substance, but not its chemical composition
Down
  1. any substance that has mass and takes up space by having volume.
  2. the symbolic representation of a chemical reaction in the form of symbols and formulae
  3. the artificial execution of chemical reactions to obtain one or several products.
  4. a molecule that binds to an enzyme and decreases its activity.
  5. chemical reaction during which one functional group in a chemical compound is replaced by another functional group.
  6. a process in which one or more substances, also called reactants, are converted to one or more different substances, known as products
  7. formed from chemical reactions.
  8. the minimum quantity of energy which the reacting species must possess in order to undergo a specified reaction
  9. scientific study of the properties and behavior of matter
  10. any system closed to all transfers of matter and energy, the mass of the system must remain constant over time,
  11. is a "reaction for which the overall standard enthalpy change ΔH⚬ is negative.
  12. is a biological catalyst and is almost always a protein

26 Clues: formed from chemical reactions. • a chemical reaction between substances • is a biological catalyst and is almost always a protein • material that can be made to react with other substances • the process of increasing the rate of a chemical reaction • scientific study of the properties and behavior of matter • ...

combustion and chemical reaction 2024-02-13

combustion and chemical reaction crossword puzzle
Across
  1. The chemical reaction between a fuel and oxygen.
  2. The energy stored in the bonds of chemical compounds.
  3. The process of burning a substance.
  4. The reactants of a chemical reaction.
  5. The heat energy released during a chemical reaction.
  6. The products of a chemical reaction.
  7. The colorless, odorless gas produced during combustion.
  8. A substance that undergoes combustion.
Down
  1. A substance that slows down or prevents a chemical reaction.
  2. A compound containing hydrogen and carbon atoms, often found in fossil fuels.
  3. The minimum amount of energy required to initiate a chemical reaction.
  4. The substance that reacts with a fuel in combustion.
  5. A substance that increases the rate of a chemical reaction without being consumed.

13 Clues: The process of burning a substance. • The products of a chemical reaction. • The reactants of a chemical reaction. • A substance that undergoes combustion. • The chemical reaction between a fuel and oxygen. • The heat energy released during a chemical reaction. • The substance that reacts with a fuel in combustion. • ...

Biology 2012-11-09

Biology crossword puzzle
Across
  1. the end of a reaction
  2. sugars starches
  3. A molecule that can combine with others to form a polymer
  4. single neulcaic acid form
  5. the thing that starts a chemical reaction
  6. the energy needed to activate a chemical reaction
  7. fats
Down
  1. A substance participating in a chemical reaction, especially a directly reacting substance present at the initiation of the reaction.
  2. chain, longer than ones
  3. a substance changes chemically
  4. a single sugar
  5. dna
  6. causes a reaction
  7. building blocks
  8. a block from protein
  9. a substance that forms things

16 Clues: dna • fats • a single sugar • sugars starches • building blocks • causes a reaction • a block from protein • the end of a reaction • chain, longer than ones • single neulcaic acid form • a substance that forms things • a substance changes chemically • the thing that starts a chemical reaction • the energy needed to activate a chemical reaction • ...

Biology 2012-11-09

Biology crossword puzzle
Across
  1. the end of a reaction
  2. sugars starches
  3. A molecule that can combine with others to form a polymer
  4. single neulcaic acid form
  5. the thing that starts a chemical reaction
  6. the energy needed to activate a chemical reaction
  7. fats
Down
  1. A substance participating in a chemical reaction, especially a directly reacting substance present at the initiation of the reaction.
  2. chain, longer than ones
  3. a substance changes chemically
  4. a single sugar
  5. dna
  6. causes a reaction
  7. building blocks
  8. a block from protein
  9. a substance that forms things

16 Clues: dna • fats • a single sugar • sugars starches • building blocks • causes a reaction • a block from protein • the end of a reaction • chain, longer than ones • single neulcaic acid form • a substance that forms things • a substance changes chemically • the thing that starts a chemical reaction • the energy needed to activate a chemical reaction • ...

OPTIONAL BONUS POINT OPPORTUNITY FOR U5S1 KINETICS & HESS'S LAW 2022-02-04

OPTIONAL BONUS POINT OPPORTUNITY FOR U5S1 KINETICS & HESS'S LAW crossword puzzle
Across
  1. ____________ is the movement of one or more components of a mixture to improve contact.
  2. ______________ is the reaction that goes to the right.
  3. ___________ is a molecular entity that is formed from the reactants and reacts further to give the directly observed products of a chemical reaction.
  4. ___________ the minimum quantity of energy needed in order to start a specified reaction.
  5. __________ is the speed at which a chemical reaction takes place.
  6. __________ a statement that says the heat change in a chemical reaction is the same regardless of the number of stages in which the reaction is effected.
  7. ________________ is a reaction for which the overall standard enthalpy change ΔH⚬ is negative.
  8. _______________ is the reaction that goes to the left.
Down
  1. ____________ is the area of the chemical substances used in a chemical reaction.
  2. ________________ is any process with an increase in the enthalpy H of the system.
  3. _______ a substance that increases the rate of a chemical reaction by adding a substance.
  4. ___________________ these diagrams are used to relate the free energy changes that occur during the progress of chemical processes to the rate and equilibrium constants of the process.
  5. ________ a thermodynamic quantity equivalent to the total heat content of a system.
  6. An ___________ is a molecule that binds to an enzyme and decreases its activity.
  7. _________________ is the branch of physical chemistry that is concerned with understanding the rates of chemical reactions.
  8. ____________ the average kinetic energy of all the atoms or molecules of that substance.

16 Clues: ______________ is the reaction that goes to the right. • _______________ is the reaction that goes to the left. • __________ is the speed at which a chemical reaction takes place. • ____________ is the area of the chemical substances used in a chemical reaction. • An ___________ is a molecule that binds to an enzyme and decreases its activity. • ...

chemical reactions 2024-11-18

chemical reactions 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 • ...

reactions of matter 2024-11-04

reactions of matter 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 • ...

Unit 3 Chemical Reactions 2023-04-26

Unit 3 Chemical Reactions crossword puzzle
Across
  1. substances present after chemical reaction
  2. basic unit of matter
  3. change that results in new substance
  4. characteristics
  5. tells number of atoms of an element
  6. only factor that can be changed in chem equation
  7. pure substance with only one type of atom
  8. amount of space object occupies
  9. when a chemical change occurs, properties __
  10. pure substance with more than one type of atom
Down
  1. change that does not result in new substance
  2. substances present before chemical reaction
  3. releases heat; temp increases
  4. amount of matter in an object
  5. evidence of gas production
  6. takes up space and has mass
  7. Law of __ of mass; total amount of matter is constant
  8. absorbs heat; temp decreases
  9. a chemical ___ represents a chemical reaction
  10. represents yields/produces

20 Clues: characteristics • basic unit of matter • evidence of gas production • represents yields/produces • takes up space and has mass • absorbs heat; temp decreases • releases heat; temp increases • amount of matter in an object • amount of space object occupies • tells number of atoms of an element • change that results in new substance • pure substance with only one type of atom • ...

Reaction Rate 2020-01-17

Reaction Rate crossword puzzle
Across
  1. the physical force exerted on an object
  2. the assembly of atoms which corresponds to an arbitrary infinitesimally
  3. outer shell electron associated with an atom
  4. the process of burning something
  5. the production of chemical compounds by reaction from simpler materials
  6. the degree of heat present in a substance or object
  7. a principle stating that if a constraint is applied to a system
  8. the process of rotting or decaying
  9. a reaction where one element is substituted for another element in a compound
  10. the minimum quantity of energy which the reacting must possess in order to undergo a specified reaction
  11. a chemical property reffering to the ability for a given substance to dissolve in a solvent
Down
  1. the outside or uppermost layer of something
  2. a substance that undergoes change during a reaction
  3. a chemical reaction where the reactants form products that react to give the reactants back
  4. the amount of a given substance contained within a solution
  5. a substance that slows down or prevents a particular chemical reaaction
  6. a solution that can resist pH change upon the addition of an acidic or basic components
  7. a substance that increases the rate of a chemical reaction without any permanent chemical change
  8. considered to be of a certain quality, standard, or rank
  9. the process or result of oxidizing or being oxidized
  10. a thermodynamic quantity equivalent to the heat content of a system
  11. a thermodynamic function that describes the randomness and disorder of molecules
  12. a substance formed as the result of a chemical reaction

23 Clues: the process of burning something • the process of rotting or decaying • the physical force exerted on an object • the outside or uppermost layer of something • outer shell electron associated with an atom • a substance that undergoes change during a reaction • the degree of heat present in a substance or object • the process or result of oxidizing or being oxidized • ...

Stoichiometry Crossword 2022-01-23

Stoichiometry Crossword crossword puzzle
Across
  1. a substance that undergoes a distinct observable change when conditions in its solution change
  2. flat bottom, conical body and a cylindrical neck, also known as a titration flask or a conical flask
  3. mass the mass of one mole of a substance in units of grams per mole
  4. measure of how much of a given substance is mixed with another substance
  5. reaction which one element is swapped for another element in a compound.
  6. used to transfer a measured volume of liquid
  7. reactant whose entities are present in surplus amounts, so some remain after the reaction ends.
  8. equation leaving out any entity that do not change the reaction
  9. reaction which the negative ions of two ionic compounds exchange places to form two new compounds within a reaction
  10. reactant whose entries are completely consumed in a reaction
  11. any method used for determining the amount of chemical in a sample
  12. A technological process of carefully adding a solution from a burette into measured, fixed volume of another solution until the reaction is judged to be complete
  13. reaction
Down
  1. ions that are present but do not take part in chemical change during reaction
  2. determination of the chemical composition in a chemical sample
  3. the amount of space that a substance or object occupies
  4. reaction that contains balanced reactants and products on both sides of equation
  5. actual/Theoretical ×100
  6. granulated glass tube with a tap known for delivering volumes of liquid usually in Titrations
  7. base unit for chemical amounts, or amount of substance
  8. A measure of the amount of matter an object contains
  9. This is a measure of the quantity of moles of a product formed in relation to the reaction that has occured
  10. invented Stoichiometry
  11. The amount or number of an immaterial thing not usually estimated by spatial measurements.
  12. a substance produced during a chemical, natural, or manufacturing process

25 Clues: reaction • invented Stoichiometry • actual/Theoretical ×100 • used to transfer a measured volume of liquid • A measure of the amount of matter an object contains • base unit for chemical amounts, or amount of substance • the amount of space that a substance or object occupies • reactant whose entries are completely consumed in a reaction • ...

ch. 2 vocab. #27-50 2022-09-27

ch. 2 vocab. #27-50 crossword puzzle
Across
  1. substances changed during a chemical reaction
  2. has ring structure
  3. energy that will break bonds between atoms
  4. release energy
  5. reactions changes substances by breaking bonds
  6. made of monomers called amino acids
  7. substances made by chemical reactions
  8. speeds up reaction, lowers activation energy
  9. energy absorbed
  10. stores information
  11. acids contain C,H,O,N, and sometimes S
Down
  1. made of C,H,O, sugar & starch
  2. subunit in complete molecule
  3. reactants/Products are made at same rate
  4. bond share a pair of electron
  5. acid polymer made of monomers called nucleotides
  6. catalysts for chemical reaction
  7. fats, oils, & cholesterol
  8. most abundant organic molecule on earth
  9. reactants that enzymes act on
  10. simple sugars
  11. helps build proteins
  12. energy energy needed to start reaction

23 Clues: simple sugars • release energy • energy absorbed • has ring structure • stores information • helps build proteins • fats, oils, & cholesterol • subunit in complete molecule • made of C,H,O, sugar & starch • bond share a pair of electron • reactants that enzymes act on • catalysts for chemical reaction • made of monomers called amino acids • substances made by chemical reactions • ...

Unit 5 HC crossword 2023-11-03

Unit 5 HC crossword crossword puzzle
Across
  1. the number placed below the element after the symbol
  2. when the amount of matter stays the same
  3. production of chemical compounds by reaction from simpler materials
  4. a number placed in front of a chemical symbol or formula
  5. a way to represent a chemical reaction
  6. substances initially present in a chemical reaction
  7. equal number of atoms of each element on both side of the equation
Down
  1. one or more substances are converted to one or more different substances
  2. the simple form of a chemical reaction
  3. points in the direction of the products
  4. ions that have already been bonded
  5. systematic names for chemical compounds
  6. new material formed from the chemical reaction
  7. NaCl
  8. charge can be positive or negative, determined by their column

15 Clues: NaCl • ions that have already been bonded • the simple form of a chemical reaction • a way to represent a chemical reaction • points in the direction of the products • systematic names for chemical compounds • when the amount of matter stays the same • new material formed from the chemical reaction • substances initially present in a chemical reaction • ...

GP3 Exam 1 Crossword 2017-01-24

GP3 Exam 1 Crossword crossword puzzle
Across
  1. A reaction which absorbs energy is called _____________.
  2. When two or more simple substances combine to for a complex substance.
  3. A substance that speeds up the rate of reaction without getting involved in the reaction itself.
  4. The amount of energy required for colliding molecules to break their bonds and react is called the _____________ energy.
  5. This factor increases the rate of reaction by increasing the number of molecules in a given volume.
  6. This factor increases the rate of reaction by increasing the kinetic energy of the colliding molecules.
  7. The number in a chemical equation that describes how many molecules of a reactant/product there are
  8. _____________ theory explains that for molecules to react they need to collide with the correct orientation and sufficient energy.
  9. A _________ replacement reaction is when two ionic compounds switch ions with each other.
Down
  1. The Law of ___________ of Mass states that the mass of the reactants is equal to the mass of products in a chemical reaction.
  2. An expression that uses symbols and formulas to represent a chemical reaction is called a chemical ______.
  3. A ________ replacement reaction is when a free element replaces one of the elements in a compound
  4. A reaction which releases energy is called ___________.
  5. When a complex substance breaks down into two or more simpler substances
  6. If you increase the ______ area of a reactant by grinding it into a powder, it will react faster.
  7. when a substance acts to form new substances,this is called a chemical ____________.
  8. The substances that result from a reaction
  9. When a chemical equation has the same number of atoms on both sides it is called ____________.

18 Clues: The substances that result from a reaction • A reaction which releases energy is called ___________. • A reaction which absorbs energy is called _____________. • When two or more simple substances combine to for a complex substance. • When a complex substance breaks down into two or more simpler substances • ...

Y9 Chemistry Crossword 2022-05-24

Y9 Chemistry Crossword crossword puzzle
Across
  1. the large numbers in front of molecules in a chemical equation.
  2. type of change where a new substance has formed.
  3. when the correct number of atoms are present on both sides of the equation, it is _.
  4. the solid that can form during a chemical reaction.
  5. when energy is _, the reaction may feel cold.
  6. the small numbers next to elemental symbols in a chemical formula.
Down
  1. the new substances formed in a reaction.
  2. type of reaction when a chemical reaction absorbs heat from the surroundings, feeling colder.
  3. a rapid change in _ can indicate a chemical change.
  4. simple description of what is happening during a chemical reaction.
  5. substances that react to form new substances.
  6. type of reaction when a chemical reaction releases heat to the surroundings, feeling warmer.
  7. indicate a gas has formed as part of the reaction.

13 Clues: the new substances formed in a reaction. • substances that react to form new substances. • when energy is _, the reaction may feel cold. • type of change where a new substance has formed. • indicate a gas has formed as part of the reaction. • a rapid change in _ can indicate a chemical change. • the solid that can form during a chemical reaction. • ...

Chemical Reactions 2023-09-12

Chemical Reactions crossword puzzle
Across
  1. A chemical reaction that produces heat and light.
  2. Reaction A process where substances change into new substances.
  3. The gradual wearing away of a material due to a chemical reaction.
  4. Change A change in matter that does not create new substances.
  5. A reaction between an acid and a base to produce water and salt.
  6. A solid that forms during a chemical reaction.
  7. of Mass The principle that matter is neither created nor destroyed in a chemical reaction.
  8. A substance with a pH greater than 7 that can be slippery.
  9. Change A change that results in the formation of new substances.
Down
  1. The measure of how hot or cold something is.
  2. A substance that speeds up a chemical reaction.
  3. The substances that go into a chemical reaction.
  4. The new substances that are formed in a chemical reaction.
  5. Equation A way to represent a chemical reaction using symbols and formulas.
  6. A substance with a pH less than 7 that can be corrosive.

15 Clues: The measure of how hot or cold something is. • A solid that forms during a chemical reaction. • A substance that speeds up a chemical reaction. • The substances that go into a chemical reaction. • A chemical reaction that produces heat and light. • A substance with a pH less than 7 that can be corrosive. • The new substances that are formed in a chemical reaction. • ...

Chemical reactions 2024-11-01

Chemical reactions 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 • Is a substance that is formed as the result of a chemical reaction. • of reaction: The speed at which reactants are converted in products • A substance that takes part in and undergoes change during a reaction • ...

LAYLA crosss woed 2024-11-06

LAYLA crosss woed 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 • ...

Josh Nagao 2017-02-27

Josh Nagao crossword puzzle
Across
  1. a quantity obtained by multiplying quantities
  2. Consisting of two atoms
  3. number or symbol multiplied with a variable or an unknown quantity in an algebraic term
  4. the process or result of oxidizing or being oxidized
  5. chemical decomposition produced by passing an electric current through a liquid or solution containing ions. 2
  6. Replacement type of chemical reaction where an element reacts with a compound and takes the place of another element in that compound
  7. Compound relating to, composed of, or involving two things
Down
  1. produce or provide
  2. cause to happen suddenly, unexpectedly, or prematurely.
  3. Replacement type of chemical reaction where two compounds react, and the positive ions (cation) and the negative ions (anion) of the two reactants switch places, forming two new compounds or products
  4. Equation the symbolic representation of a chemical reaction in the form of symbols and formula
  5. combination or composition, in particular
  6. combination or composition, in particular.
  7. substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
  8. half-reaction in which a chemical species decreases its oxidation number
  9. containing water, typically as a solvent or medium.
  10. substance that takes part in a change during a reaction.

17 Clues: produce or provide • Consisting of two atoms • combination or composition, in particular • combination or composition, in particular. • a quantity obtained by multiplying quantities • containing water, typically as a solvent or medium. • the process or result of oxidizing or being oxidized • cause to happen suddenly, unexpectedly, or prematurely. • ...

Chemical Equations and Reactions Crossword Puzzle 2023-11-20

Chemical Equations and Reactions Crossword Puzzle crossword puzzle
Across
  1. big number in front of compounds in a chemical equation
  2. the letters that make up the symbols for elements, some include subscripts
  3. two or more substances react to form one product
  4. an arrow in a chemical reaction can mean this
  5. staring substance in a chemical reaction
  6. solid, liquid, gas, aqueous
  7. the opposite of synthesis, one reactant breaks down into 2 or more products
  8. new substances formed in a chemical reaction
  9. split elements on one side should be balance ______
  10. when balancing equations the coefficients must be in the lowest, _____ form
Down
  1. counting the number of atoms is called taking the ________
  2. small number on the right of compounds
  3. one element switches place with another element in this type of reaction
  4. all ions in a compound switch places to make two new compounds
  5. states that matter/mass cannot be created nor destroyed, only rearranged
  6. when a chemical reaction occurs, these will be a sign
  7. uses only words to represent reactants and products
  8. this type of reaction always has water and carbon dioxide as products
  9. can you change subscripts when balancing equations?
  10. state of matter that means "dissolved in water"

20 Clues: solid, liquid, gas, aqueous • small number on the right of compounds • staring substance in a chemical reaction • new substances formed in a chemical reaction • an arrow in a chemical reaction can mean this • state of matter that means "dissolved in water" • two or more substances react to form one product • uses only words to represent reactants and products • ...

7.1-7.2 Crossword 2025-01-16

7.1-7.2 Crossword crossword puzzle
Across
  1. separates reactants and products side of chemical reaction
  2. _________ replacement reactions involve swapping of atoms between 2 compounds
  3. AB ---> A + B is the generic formula for ______ reactions
  4. _________ replacement reactions involve one element replacing another
  5. chemical at the beginning of a chemical reaction
  6. K + NaBr ---> KBr + Na represents a _________ replacement reaction
Down
  1. type of reaction where substance reacts with oxygen gas to make water and carbon dioxide
  2. chemical made in a chemical reaction
  3. A + B ---> AB is the generic formula for ______ reactions
  4. MgO + CaS ---> MgS + CaO represents a _________ replacement reaction
  5. number in front of the chemical, in the equation
  6. (s) in chemical equation
  7. (l) in chemical equation
  8. (aq) in chemical equation
  9. (g) in chemical equation

15 Clues: (s) in chemical equation • (l) in chemical equation • (g) in chemical equation • (aq) in chemical equation • chemical made in a chemical reaction • number in front of the chemical, in the equation • chemical at the beginning of a chemical reaction • A + B ---> AB is the generic formula for ______ reactions • AB ---> A + B is the generic formula for ______ reactions • ...

Sience Unit 4 Vocab 2023-10-09

Sience Unit 4 Vocab crossword puzzle
Across
  1. basic sub units
  2. proteins that are being sped up during a biochemical reaction by lowering activation energy
  3. absorb energy
  4. substance being made by a chemical reaction
  5. substance changed during a chemical reaction
  6. Building larger molecules from smaller ones
  7. the amount of energy needed to make a chemical reaction to start
  8. breaks down large compounds into simple compounds
Down
  1. Large complex structures made of monomers.
  2. enzymes getting derom and looses shape.
  3. reaction building a polymer by linking monomers
  4. release energy
  5. where the substrate bonds
  6. Reaction breaking and forming bonds from different substances
  7. breaking big polymers into smaller monomers.

15 Clues: absorb energy • release energy • basic sub units • where the substrate bonds • enzymes getting derom and looses shape. • Large complex structures made of monomers. • substance being made by a chemical reaction • Building larger molecules from smaller ones • substance changed during a chemical reaction • breaking big polymers into smaller monomers. • ...

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 • ...

Biology Crossword Antonio Osejo 2025-02-05

Biology Crossword Antonio Osejo crossword puzzle
Across
  1. Process where substances convert to different substances
  2. Building block of proteins
  3. Does not contain C-H bond
  4. Starting material for a chemical reaction
  5. Simple sugars
  6. Store energy long term
  7. Resist change
  8. Substance which an enzyme can act
  9. The minimum amount of energy required for a chemical reaction
  10. pH less than 7
Down
  1. It contains instructions on how to make proteins in the body
  2. Smaller units linked together
  3. Contain C-H bond
  4. Formed from linked monosaccharides
  5. Store and transmit genetic information
  6. Quick source of energy
  7. Substances formed as a result of a chemical reaction.
  8. Smaller unit
  9. Catalysts that speed up reactions
  10. Speeds up a chemical reaction
  11. Hold together amino acids
  12. Used to form bones and muscles
  13. Store and transmit genetic information
  14. pH greater than 7

24 Clues: Smaller unit • Simple sugars • Resist change • pH less than 7 • Contain C-H bond • pH greater than 7 • Quick source of energy • Store energy long term • Does not contain C-H bond • Hold together amino acids • Building block of proteins • Smaller units linked together • Speeds up a chemical reaction • Used to form bones and muscles • Catalysts that speed up reactions • ...

chapter 6 crossword 2013-11-20

chapter 6 crossword crossword puzzle
Across
  1. a reaction in which a single compound breaks down to form two or more simple substances
  2. any chemical change in which one species is oxidized and another species is reduced
  3. a chemical reaction that requires heat
  4. substance that forms in a chemical reaction
  5. an organic group that has one or more electrons available for bonding
  6. a reaction in which two or more substances combine to form a new compound
  7. a representation of a chemical reaction that uses symbols to show the relationship between the reactants and he products
  8. a reaction in which a gas, a solid, or a molecular compound forms from the apparent exchange of atoms or ions between two compounds
Down
  1. a chemical reaction in which heat is released to the surroundings
  2. energy released when a chemical compound reacts to produce new compounds
  3. a reaction in which one element or radical takes the place of another element or radical in a compound
  4. the oxidation reaction of an organic compound, in which heat is released
  5. substance or molecule that participates in a chemical reaction
  6. ratio between the amounts in moles of any two compounds involved in a chemical reaction

14 Clues: a chemical reaction that requires heat • substance that forms in a chemical reaction • substance or molecule that participates in a chemical reaction • a chemical reaction in which heat is released to the surroundings • an organic group that has one or more electrons available for bonding • energy released when a chemical compound reacts to produce new compounds • ...

Exothermic and Endothermic reactions 2020-12-18

Exothermic and Endothermic reactions crossword puzzle
Across
  1. During reaction of potassium chloride, what solvent in the reaction?
  2. During reaction of sodium chloride, what solute in the reaction?
  3. Symbolic representation of a chemical reaction in the form of symbols and formulae.
  4. When potassium, water and hydrogen mixed together.
  5. How much energy stores in the products?
  6. The type of reaction in exothermic reaction.
  7. What reaction when heat evolved?
  8. A forming of water vapor in clouds.
  9. A reaction between copper wire and sulfur.
  10. What is the reaction in which energy is taken in?
  11. How energy do the surroundings?
Down
  1. Reaction between magnesium and chlorine gas.
  2. When the surroundings vibrate more and more, what energy is given?
  3. A substance combines with oxygen.
  4. Weak organic acid that has molecular formula.
  5. Matter that has properties and composition.
  6. A reaction includes base and acid react to form water and salt.
  7. Another process in endothermic reaction.
  8. Including in exothermic reaction.
  9. Energy that is released to the environment.
  10. Reaction between carbon and oxygen.
  11. Air like substances that can move around freely and flow.
  12. Energy including in endothermic reaction.
  13. Another term used for burning.
  14. What are example of endergonic reaction?
  15. When iron rusts, it combines with oxygen from the air.
  16. In endothermic process, how surroundings become?
  17. Related to the exothermic reaction, reaction between fuel and oxidant.
  18. Chemical formula Na2SO3.
  19. Energy is stored in the bonds of chemical compounds.

30 Clues: Chemical formula Na2SO3. • Another term used for burning. • How energy do the surroundings? • What reaction when heat evolved? • A substance combines with oxygen. • Including in exothermic reaction. • Reaction between carbon and oxygen. • A forming of water vapor in clouds. • How much energy stores in the products? • Another process in endothermic reaction. • ...

Vocab Definition 2022-01-24

Vocab Definition crossword puzzle
Across
  1. A chemical formula that shows the number and kinds of atoms in a molecule, but not the arrangement of the atoms.
  2. a mixture that contains the relative amounts of reactants that match the numbers in the balanced equation
  3. a chemical change that involves an exchange of positive ions between two compounds
  4. making sure atoms on left = atoms on right. (following law of conservation of mass).
  5. A starting material in a chemical reaction
  6. a reaction in which two or more substances combine to form a new compound
  7. The elements or compounds produced by a chemical reaction.
  8. number of representative particles in a mole, 6.02 X 10^23
  9. the calculation of the quantities of material consumed and produced in chemical reactions
  10. the maximum amount of product that can be produced from a given amount of reactant
  11. the SI base unit used to measure the amount of a substance
  12. a chemical reaction that occurs when the atoms of one element replace the atoms of another element in a compound
Down
  1. the substance that controls the quantity of product that can form in a chemical reaction
  2. the weighted average of the atomic masses of the naturally occurring isotopes of an element
  3. the mass of one mole of a pure substance
  4. the ratio of the actual yield to the theoretical yield expressed as a percent
  5. a reaction in which a single compound breaks down to form two or more simpler substances
  6. a conversion factor that relates the amounts in moles of any two substances involved in a chemical reaction
  7. A representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products
  8. the number of grams of solute in each 100 g of solution
  9. a chemical formula showing the ratio of elements in a compound rather than the total number of atoms
  10. an instrument used to determine the relative masses of atoms by the deflection of their ions on a magnetic field

22 Clues: the mass of one mole of a pure substance • A starting material in a chemical reaction • the number of grams of solute in each 100 g of solution • The elements or compounds produced by a chemical reaction. • number of representative particles in a mole, 6.02 X 10^23 • the SI base unit used to measure the amount of a substance • ...

5th six weeks review 2022-04-11

5th six weeks review crossword puzzle
Across
  1. a chemical reaction that uses pure elements to make compounds
  2. a chemical reaction where two ionic substances swap anions (or cations)
  3. a chemical reaction where an ionic substance has one of its ions replace with a new one
  4. a mixture of metal and metal oxide that can undergo a VERY HOT single replacement reaction
  5. a molecule that does not have a distinct positive or negative side
  6. in a chemical formula, this number indicates how many of that atom or group are required to make that molecule
  7. the electric charge on a proton
  8. a chemical reaction that uses 1 compound to make two or more simpler substances
  9. the chemicals you use in a reaction should weigh the same before and after
  10. the electric charge on an electron
  11. molecules with four regions of electron density around a central atom's valence shell have this geometry
Down
  1. hydrogen peroxide slowly decomposes, we add this to make chemical reactions go faster
  2. when a molecule has one or more bonds between hydrogen and oxygen, fluorine, or nitrogen it experiences this attractive force
  3. these electrons are the ones involved in forming chemical bonds
  4. this property determines if two atoms will form an ionic, polar or nonpolar covalent bond
  5. molecules with four regions of electron density around a central atom's valence shell, but only two of them are bonds have this geometry
  6. this process will decompose water into hydrogen and oxygen gases
  7. the most electronegative atom
  8. this type of chemical reaction generally uses oxygen and releases carbon dioxide
  9. this type of reaction usually requires energy
  10. required for combustion
  11. one of many chemicals that is composed of *mostly* carbons and hydrogens, generally required for combustion
  12. the only parts of a chemical equation you are allowed to change while balancing
  13. a collection of atoms that are covalently bonded to one another
  14. a molecule that has a slightly positive side and a slightly negative side
  15. these elements react with water in a single-replacement reaction
  16. in a chemical equation, this number goes in front of a chemical formula to indicate how many molecules are required to balance the equation

27 Clues: required for combustion • the most electronegative atom • the electric charge on a proton • the electric charge on an electron • this type of reaction usually requires energy • a chemical reaction that uses pure elements to make compounds • these electrons are the ones involved in forming chemical bonds • a collection of atoms that are covalently bonded to one another • ...

Chemistry Vocabulary 2025-01-21

Chemistry Vocabulary crossword puzzle
Across
  1. A substance that speeds up a chemical reaction by lowering the activation energy without being consumed in the process.
  2. A symbolic representation of a chemical reaction, showing the reactants and products with their quantities.
  3. The solid part of Earth, including rocks, soil, and fossil fuels.
  4. A weak bond formed between the slightly positive hydrogen atom of one molecule and the slightly negative atom (like oxygen) of another molecule.
  5. A principle stating that energy cannot be created or destroyed; it can only be transferred or transformed.
  6. The part of Earth where life exists, including all living organisms.
  7. A process in which reactants are transformed into products by breaking and forming chemical bonds.
  8. A chemical reaction that absorbs energy, often resulting in a cooling effect. Example Photosynthesis.
  9. The layer of gases surrounding Earth, including nitrogen, oxygen, and carbon dioxide.
  10. The starting substances in a chemical reaction that undergo a change to form products.
Down
  1. The minimum energy required to start a chemical reaction.
  2. The movement of carbon through Earth’s four spheres (atmosphere, biosphere, hydrosphere, geosphere) via processes like photosynthesis, respiration, and combustion.
  3. A chemical reaction that releases energy, usually as heat or light. Example Combustion.
  4. A principle stating that mass cannot be created or destroyed in a chemical reaction; the mass of the reactants equals the mass of the products.
  5. A force that holds atoms together in a molecule. Types include covalent, ionic, metallic, and hydrogen bonds.
  6. All of Earth’s water, including oceans, lakes, rivers, and groundwater.
  7. A molecule with an uneven distribution of charge, creating a positive side and a negative side. Water is a polar molecule.
  8. A group of two or more atoms chemically bonded together. Molecules can consist of the same type of atom (e.g., O₂) or different types (e.g., H₂O).
  9. The smallest unit of an element that retains its chemical properties. Atoms consist of a nucleus made of protons and neutrons, surrounded by electrons.
  10. The substances formed as a result of a chemical reaction.

20 Clues: The minimum energy required to start a chemical reaction. • The substances formed as a result of a chemical reaction. • The solid part of Earth, including rocks, soil, and fossil fuels. • The part of Earth where life exists, including all living organisms. • All of Earth’s water, including oceans, lakes, rivers, and groundwater. • ...

Chemical reactions Vocab 2026-03-17

Chemical reactions Vocab crossword puzzle
Across
  1. the energy stored in the chemical bonds of a substance
  2. a reaction in which one element takes the place of another element in a compound (A + BC --> AC + B)
  3. a reaction in which two different compounds exchange positive ions and form 2 new compounds (AB + CD --> AD + BC)
  4. a substance that affects the reaction rate without being used in the reaction
  5. The substances that change in a chemical reaction (the starting materials of a reaction)
  6. the numbers that appear before a formula in a chemical equation to show the relative proportions of each reactant to the product
  7. a chemical reaction that releases energy into its surroundings
Down
  1. a reaction in which a compound breaks down into two or more simpler substances (AB --> A + B)
  2. a state in which the forward and reverse paths of change take place at the same rate
  3. a reaction in which a substance reacts rapidly with oxygen, often producing heat and light
  4. a reaction in which the conversion of reactants into products and the conversion of products into reactants can happen simultaneously
  5. a reaction in which electrons are transferred from one reactant to another
  6. A representation of a chemical reaction in which reactants and products are expressed as formulas
  7. a reaction in which 2 or more substances react to form a single substance (A + B --> AB)
  8. the rate at which reactants change into products
  9. The new substances that are formed as a result of a chemical reaction

16 Clues: the rate at which reactants change into products • the energy stored in the chemical bonds of a substance • a chemical reaction that releases energy into its surroundings • The new substances that are formed as a result of a chemical reaction • a reaction in which electrons are transferred from one reactant to another • ...

Crossword Alberts Class 2023-11-15

Crossword Alberts Class 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 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 • ...

crossword 2024-11-04

crossword 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 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 • ...

The Mole Concept & Stoichiometry 2019-02-11

The Mole Concept & Stoichiometry crossword puzzle
Across
  1. Avogadro's number
  2. the percent ratio of actual yield to the theoretical yield.
  3. a mathematical expression used to represent a decimal number between 1 and 10 multiplied by ten, so you can write large numbers using less digits.
  4. a unit of mass for expressing the mass of an atom
  5. the maximum amount of product that can be produced by a chemical reaction.
  6. the basic unit of a chemical element.
  7. the study of the quantitative relationships or ratios between two or more substances undergoing a physical change or chemical change (chemical reaction).
  8. the number in front of a chemical formula
Down
  1. the reactant that gets used first in a chemical reaction and therefore limits how much product can be formed.
  2. the reactants that are left over when the reaction is finished.
  3. a group of atoms bonded together
  4. the mass of a given substance (chemical element or chemical compound) divided by the amount of substance
  5. one way of representing the concentration of an element in a compound or a component in a mixture
  6. an atom or molecule with a net electric charge
  7. the amount of produce actually obtained from a chemical reaction.
  8. the ratio between the amounts in moles of any two compounds involved in a balanced chemical reaction.
  9. The mass of any element is equal to 1 of these
  10. a quantity representing the power to which a given number or expression is to be raised

18 Clues: Avogadro's number • a group of atoms bonded together • the basic unit of a chemical element. • the number in front of a chemical formula • an atom or molecule with a net electric charge • The mass of any element is equal to 1 of these • a unit of mass for expressing the mass of an atom • the percent ratio of actual yield to the theoretical yield. • ...

science crosswords 2024-01-10

science crosswords crossword puzzle
Across
  1. a number placed in front of a chemical symbol or formula that shows how many atoms or molecules of the substance are involved in the reaction.
  2. the ratio between the mass and the amount of substance of any sample of said compound.
  3. a substance or compound added to a system to cause a chemical reaction
  4. he symbolic representation of a chemical reaction in the form of symbols and chemical formulas.
  5. the transfer of electrons between species in a chemical reaction, where there is a process of gaining electrons or a decrease in the oxidation state by an element.
  6. the hypothetical charge of an atom if all of its bonds to other atoms were fully ionic
  7. the process or effect of simplifying a single chemical entity into two or more fragments.
Down
  1. a chemical reaction in which one element is replaced by another in a compound.
  2. the species formed from chemical reactions.
  3. a reaction in which the positive and negative ions of two ionic compounds exchange places to form two new compounds.
  4. 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.
  5. the processes by which chemicals interact to form new chemicals with different compositions.
  6. the unit of meathe surement for amount of substance, a quantity proportional to the number of elementary entities of a substance.
  7. the artificial execution of chemical reactions to obtain one or several products.

14 Clues: the species formed from chemical reactions. • a substance or compound added to a system to cause a chemical reaction • a chemical reaction in which one element is replaced by another in a compound. • the artificial execution of chemical reactions to obtain one or several products. • ...

Chemical Reactions 2021-03-31

Chemical Reactions crossword puzzle
Across
  1. Large numbers in a chemical formula that get applied to all the elements in the formula
  2. _____________ indicate the formation of a gas
  3. A chemical _______________ occurs when elements rearrange to form new substances
  4. The chemicals that are produced in a chemical reaction
  5. A chemical reaction in which energy is absorbed. Photosynthesis is an example
  6. Chemical reactions create new substances with new ________________
  7. A chemical reaction in which energy is realized in the form of heat or light
  8. An equation with the same number of atoms on the products side as the reactants side
  9. The Law of Conservation of ______ says that matter cannot be created or destroyed
Down
  1. A chemical reaction can be described by a chemical _____________ which shows the reactants and products
  2. A solid formed by mixing two liquids together.
  3. A substance that contains at least two different elements that are chemically bonded
  4. Small numbers in a chemical formula that get applied to only one element (unless parenthesis are used)
  5. The chemicals that go into a chemical reaction
  6. A substance that contains only one kind of atom. Represented by chemical symbols found on the periodic table

15 Clues: _____________ indicate the formation of a gas • A solid formed by mixing two liquids together. • The chemicals that go into a chemical reaction • The chemicals that are produced in a chemical reaction • Chemical reactions create new substances with new ________________ • A chemical reaction in which energy is realized in the form of heat or light • ...

Chemical Reactions and Equations 2024-05-15

Chemical Reactions and Equations crossword puzzle
Across
  1. Single compound breaks down into two or more simpler substances.
  2. Process by which plants convert sunlight into chemical energy.
  3. Two or more substances combine to form a single substance.
  4. Gain of electrons or loss of oxygen.
  5. Reaction involving both oxidation and reduction.
  6. Reaction between an acid and a base forming salt and water.
  7. Substance that undergoes change in a reaction.
  8. Insoluble solid formed in a solution.
  9. Process of using electricity to decompose a compound.
  10. Loss of electrons or gain of oxygen.
  11. Solution where water is the solvent.
Down
  1. Gradual destruction of metals by chemical reactions with environmental elements.
  2. Principle that mass is neither created nor destroyed in a reaction.
  3. Reaction where a more reactive element replaces a less reactive element.
  4. Substance that speeds up a reaction without being consumed.
  5. Reaction of a substance with oxygen releasing energy.
  6. Reaction releasing heat.
  7. Rapid release of gas bubbles from a liquid.
  8. Spoiling of fats and oils due to oxidation.
  9. Representation of a chemical reaction using symbols and formulas.
  10. Reaction absorbing heat.
  11. Equation with equal numbers of each type of atom on both sides.
  12. Substance formed as a result of a reaction.

23 Clues: Reaction releasing heat. • Reaction absorbing heat. • Gain of electrons or loss of oxygen. • Loss of electrons or gain of oxygen. • Solution where water is the solvent. • Insoluble solid formed in a solution. • Rapid release of gas bubbles from a liquid. • Spoiling of fats and oils due to oxidation. • Substance formed as a result of a reaction. • ...

Science 2024-11-08

Science 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 • ...

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 • ...

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 • ...

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 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 • ...

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 • ...

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 • ...

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 • ...

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. • ...

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 • ...

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 • ...

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 • ...

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. • ...

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 • ...

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 • ...

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 • ...

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 • ...

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 • ...

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 • ...

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 • ...

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 • ...

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 • ...

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 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 • ...

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. • ...

Q3 Exam Crossword! 2026-03-09

Q3 Exam Crossword! crossword puzzle
Across
  1. The lowest whole number ratio of ions in an ionic compound
  2. The study of quantitative relationships in chemical reactions
  3. The percent by mass of each element in a compound
  4. A written statement using formulas and symbols to show a chemical reaction
  5. A reaction in which one compound breaks apart into simpler substances
  6. A reaction where one element replaces another element in a compound
  7. A reaction where ions in two compounds switch partners
  8. The reactant that remains after the limiting reactant is used up
  9. Standard temperature and pressure
  10. A solid that forms from two aqueous solutions during a reaction
  11. A chemical equation with the same number of each type of atom on both sides
  12. Dissolved in water
  13. The percent comparing actual yield to theoretical yield
  14. A conversion factor based on the coefficients in a balanced chemical equation
  15. The volume occupied by one mole of a gas at STP
  16. The maximum amount of product that could be formed from given reactants
  17. The mass of one mole of a substance
Down
  1. The atoms molecules or formula units counted in a substance
  2. The number 6.022 x 10 to the 23rd power particles in one mole
  3. A number placed in front of a chemical formula to show how many units are involved
  4. A reaction in which a substance burns in oxygen and releases energy
  5. The amount of substance that contains Avogadros number of particles. It is a bridge or relationship between units.
  6. The reactant that is used up first and limits the amount of product formed
  7. A chemical equation that is not yet balanced
  8. The amount of product actually produced in a reaction
  9. The simplest whole number ratio of elements in a compound
  10. A reaction in which two or more substances combine to form one product
  11. A ratio used to change from one unit to another
  12. A molecule made of two atoms
  13. A substance used in a chemical reaction

30 Clues: Dissolved in water • A molecule made of two atoms • Standard temperature and pressure • The mass of one mole of a substance • A substance used in a chemical reaction • A chemical equation that is not yet balanced • A ratio used to change from one unit to another • The volume occupied by one mole of a gas at STP • The percent by mass of each element in a compound • ...

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% • ...

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 • ...

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. 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 • ...

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. • ...

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. • ...

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 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. • ...

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 • ...