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Quiz 02
| Question | Answer |
|---|---|
| Do chemical reactions involve changes in the chemical bonds that join atoms in compounds? | always |
| What are the elements or compounds that enter into a chemical reaction? | reactants |
| What are the elements or compounds that are produced by a chemical reaction? | products |
| If the reactants have more energy than the products, the energy is released, also known as. | a exothermic reaction |
| If the reactants have less energy than the products, then energy si absorbed, also known as. | a endothermic reaction |
| What is activation energy? | the energy needed to get a chemical reaction started |
| Chemical reactions that release energy often. | occur spontaneousley |
| In reversible reactions, one direction will. | produce energy and the other side will require energy |
| What is a substance that speeds up the rate of a chemical reaction? | catalyst |
| What are proteins that act as biological catalysts? | enzymes |
| Whats changes cause changes in an enzymes shape that can reduce or destroy its effectiveness as a catalyst? | pH or temperature |
| Depending on the number and types of chemical bonds broken and formed, energy may be either. | released or absorbed |
Created by:
SHOOTER POOTER
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