| A | B |
|---|
| balanced chemical equation | has the same number of atoms of each element on both sides of the equation |
| catalyst | speeds up a chemical reaction without itself being permanently changed |
| chemical reaction | one or more substances are changed to new substances |
| chlorofluorocarbon | group of compounds whose decomposition releases chlorine atoms that destroy ozone molecules |
| coefficients | numbers that represent the number of units of each substance taking part in a reaction |
| decomposition reaction | one substance breaks down, or decomposes, into two or more simpler substances |
| double-displacement reaction | takes place if a precipitate, water, or a gas forms when two ionic compounds in solution are combined |
| endothermic reaction | energy must be provided for the reaction to take place |
| exothermic reaction | reaction in which energy is given off |
| inhibitor | prevents certain reactions from occurring |
| precipitate | an insoluble compound formed during a double-displacement reaction |
| product | new substances produced |
| reactant | substances about to react |
| single-displacement reaction | one element replaces another in a compound |
| synthesis reaction | two or more substances combine to form another substance |
