Chapter 5

1. the action or process of replacing someone or something
4. a numerical or constant quantity placed before and multiplying the variable
7. a substance produced by a living organism which acts as a catalyst to bring about a specific biochemical reaction
8. a cause of a particular action or event.
10. the production of chemical compounds by reaction from simpler materials
11. a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change
12. occur when a substance combines with another to form a new substance
17. a quantity obtained by multiplying quantities together, or from an analogous algebraic operation.
18. can neither be added nor be removed

2. usually release heat and entail the replacement of weak bonds with stronger ones.
3. is the symbolic representation of a chemical reaction in the form of symbols and formulae
5. a change to a sample of matter in which some properties of the material change, but the identity of the matter does not
6. the state or process of rotting
9. a substance that takes part in and undergoes change during a reaction.
13. the action or power of focusing one's attention or mental effort
14. usually release heat and entail the replacement of weak bonds with stronger ones.
15. the minimum quantity of energy which the reacting species must possess in order to undergo a specified reaction
16. a substance which slows down or prevents a particular chemical reaction or other process or which reduces the activity of a particular reactant, catalyst, or enzyme.