| A | B |
|---|
| Chemical Reaction | Process in which substances undergo physical and chemical changes that result in the formation of new substances with different properties. |
| Reactant | substance that enters into a chemical reaction |
| Product | substance produced by a chemical reaction |
| Chemical Equation | expression in which symbols, formulas, and numbers are used to represent a chemical reaction. |
| Synthesis Reaction | chemical reaction in which two or more simple substances combine to form a new, more complex substance. |
| Decomposition Reaction | chemical reaction in which a complex substance breaks down into two or more simple substances. |
| Single-Replacement Reaction | chemical reaction in which an uncombined element replaces an element that is part of a compound |
| Double-Replacement Reaction | chemical reaction in which different atoms in two different compounds replace each other |
| Exothermic Reaction | chemical reaction in which energy is released. |
| Endothermic Reaction | chemical reaction in which energy is absorbed. |
| Activation Energy | energy required for chemical reaction to occur |
| Kinetics | study of rates of chemical reactions |
| Reaction Rate | measure of how quickly reactants change into products. |
| Collision Theory | theory that relates collisions among particles to reaction rate, reaction rate depends on such factors as concentration, surface area, temperature, and catalyst. |
| Catalyst | substance that increases the rate of a chemical reaction without being changed by the reaction. |
