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Unit 6: Chemical Reactions
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chemical energy : the energy released when a chemical compound reacts to produce new compounds
endothermic reaction : a chemical reaction that requires energy input
exothermic reaction : a chemical reaction in which energy is released to the surroundings as heat
product : a substance that forms in a chemical reaction
reactant : a substance or molecule that participates in a chemical reaction
chemical equation : a representation of a chemical reaction reaction that uses symbols to show the relationship between the reactants and products
decomposition reaction : a reaction in which a single compound breaks down to form tow or more simpler substances
double displacement reaction : a reaction in which a gas, a solid precipitate, or a molecular compound forms from the apparent exchange of atoms or ions between two compounds
single displacement reaction : a reaction in which one element or radical takes the place of another element or radical in a compound
synthesis reaction : a reaction in which two or more substance combine to form a new compoud
catalyst : a substance that changes the rates of a chemical reaction without being consumed or changed significantly
enzyme : a type of protein that speeds up metabolic reactions in plants and animals without being permanently changed or destroyed
substrate : the reactant in reactions catalyzed by enzymes
Unit 6: Chemical Reactions
Across:| 1. | a reaction in which a single compound breaks down to form tow or more simpler substances | | 3. | a substance that changes the rates of a chemical reaction without being consumed or changed significantly | | 5. | the reactant in reactions catalyzed by enzymes | | 9. | a reaction in which a gas, a solid precipitate, or a molecular compound forms from the apparent exchange of atoms or ions between two compounds |
| | 10. | the energy released when a chemical compound reacts to produce new compounds | | 11. | a chemical reaction that requires energy input | | 12. | a chemical reaction in which energy is released to the surroundings as heat |
| | Down:| 2. | a reaction in which one element or radical takes the place of another element or radical in a compound | | 3. | a representation of a chemical reaction reaction that uses symbols to show the relationship between the reactants and products | | 4. | a substance or molecule that participates in a chemical reaction |
| | 6. | a type of protein that speeds up metabolic reactions in plants and animals without being permanently changed or destroyed | | 7. | a substance that forms in a chemical reaction | | 8. | a reaction in which two or more substance combine to form a new compoud |
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© 2014
PuzzleFast.com, Noncommercial Use Only
Unit 6: Chemical Reactions
Across:| 1. | a reaction in which a single compound breaks down to form tow or more simpler substances | | 3. | a substance that changes the rates of a chemical reaction without being consumed or changed significantly | | 5. | the reactant in reactions catalyzed by enzymes | | 9. | a reaction in which a gas, a solid precipitate, or a molecular compound forms from the apparent exchange of atoms or ions between two compounds |
| | 10. | the energy released when a chemical compound reacts to produce new compounds | | 11. | a chemical reaction that requires energy input | | 12. | a chemical reaction in which energy is released to the surroundings as heat |
| | Down:| 2. | a reaction in which one element or radical takes the place of another element or radical in a compound | | 3. | a representation of a chemical reaction reaction that uses symbols to show the relationship between the reactants and products | | 4. | a substance or molecule that participates in a chemical reaction |
| | 6. | a type of protein that speeds up metabolic reactions in plants and animals without being permanently changed or destroyed | | 7. | a substance that forms in a chemical reaction | | 8. | a reaction in which two or more substance combine to form a new compoud |
| |
© 2014
PuzzleFast.com, Noncommercial Use Only