| A | B |
|---|
| Chemical Reaction | movement of atoms in matter, combining or breaking apart to produce new kinds of matter |
| Kinetic Energy | energy of an object because of its motion |
| Potential Energy | energy an object has because of its position |
| Law of Conservation of Energy | principle stating that energy cannot be created or destroyed, but it can change form |
| Hydrocarbon | compound containing only carbon and hydrogen atoms |
| Product | new substance formed as a result of a chemical reaction |
| Reactant | substance that is a starting material before a chemical change |
| Chemical Equation | symbolic method of indicating a chemical reaction |
| Exothermic | term that indicates that heat is released in a chemical reaction |
| Endothermic | term that indicates heat is absorbed in a chemical reaction |
| Law of Conservation of Mass | principle stating that energy cannot be created or destroyed, but it can change form |
| Coefficient | indicator of the number of molecules or formula units that are involved in a reaction |
| Combustion | exothermic reaction (burning) when a substance combines with oxygen |
| Synthesis | combination of two or more substances to form a compound |
| Decomposition | chemical change in which a compound breaks down to form two or more simpler substances |
| Dissociation | separation of a molecule into two or more fragments |
| Single Replacement | reaction where one element takes the place of another as part of a compound |
| Activity Series | list of elements (e.g., metals) in which each will replace all below it but none above it |
| Double Replacement | a reaction in which two compounds react to form two different compounds |
