| A | B |
|---|
| reactants | Substances that undergoes a change in a chemical reaction. |
| products | Substances that are formed as a result of a chemical reaction. |
| chemicalequation | A representation of a chemical reaction in which the the reactants & products are expressed as formulas. |
| coefficients | Numbers that appear before a formula in a chemical equation. |
| chemicalenergy | The energy stored in chemical bonds. |
| exothermicreaction | A chemical reaction that releases energy to its surroundings. |
| endothermicreaction | A chemical reaction that absorbs energy from its surroundings. |
| reactionrate | The rate at which reactants change into products. |
| catalyst | A substance that affects the rate of a chemical reaction without being used up in the reaction. |
| chemicalreaction | The process that produces chemical change, resulting in new substances that have properities different from those of the original substances. |
