| A | B |
|---|
| process that produces chemical change | chemical reaction |
| substance that slows down a chemical reaction | inhibitor |
| reaction in which heat energy is absorbed | endothermic reaction |
| substance that exists before a chemical reaction begins | reactants |
| minimum amount of energy needed in order for a reaction to begin | activation energy |
| substance formed by a chemical reaction | product |
| substance that speeds up a chemical reaction | catalyst |
| reaction in which heat energy is released | exothermic reaction |
| a measure of how fast a reaction occurs | rate of reaction |
