| A | B |
|---|
| Chemical Reaction | Well defined example of a chemical change |
| Reactants | The substance you start with |
| Products | The new substances formed |
| Coefficients | Represent the relative amounts of atoms taking part in a reaction |
| Chlorofluorocarbons (CFC's) | A group of compounds of chlorine, fluorine, and carbon |
| Balanced Chemical Equation | Has the same number of atoms of each element on both sides of the equation |
| Synthesis Reaction | Two or more substance combine two form another substance |
| Single Displacement Reaction | Occurs when one element replaces another in a compound |
| Decomposition Reaction | One substance brakes down, or decomposes, into twor or more simpler substances |
| Precipitate | An insoluble solid that settles out of a chemical reaction occurring in a liquid |
| Double Displacement Reaction | Takes place in precipitate, water, or a gas; forms when two ionic compounds in a solution are combined |
| Endothermic Reaction | A chemical reaction that required the addition of heat energy to proceed; thus the reaction absorbs heat from its surroundings |
| Exothermic Reaction | A chemical reaction that releases heat energy |
| Catalyst | A substance that speeds up a chemical reaction without itself being permanently changed |
| Inhibitor | Any substance that slows down a reaction |
