| A | B |
|---|
| chemical reaction | process in which one or more substances are changed into new substances |
| equilibrium | a point when the forward and reverse reactions occur at the same rate |
| product | new substances formed |
| reactant | ingredients of reaction |
| chemical equation | shorthand method to describe a chemical reaction using chemical formulas and other symbols |
| combustion reaction | reaction in which a substance reacts quickly with oxygen and produces water and carbon dioxide |
| decomposition reaction | reaction in which a compound breads down into two or more simpler substances |
| replacement reaction | reactions in which ions switch places in compounds |
| synthesis reaction | reaction in which two or more substances react to form a single substance |
| activation energy | the amount of energy required for a reaction to get started |
| catalyst | a substance that increases the rate of a chemical reaction but is not changed or used up in the reaction |
| concentration | the number of particles of a substance in a given volume |
| endothermic reaction | a chemical reaction that absorbs energy from its surroundings |
| exothermic reaction | a chemical reaction that releases energy |
| Law of Conservation of Energy | energy cannot be created or destroyed |
| reaction rate | how fast a reaction occurs |
