| A | B |
|---|
| Element | The simplest form of matter that has a unique set of properities; it can not be broken down into a simplier substance |
| Compound | A substance that contains one or more elements that are chemically combined in a fixed proportion |
| Chemical Change | A change that produces matter with a different composition than the original matter. |
| Periodic Table | An arrangement of elements in which the elements are separated into groups based on their properties. |
| Period | A vertical column of elements in the periodic table; they have similar chemical properties |
| Group | A horizontal row in the periodic table. |
| Chemical Property | The ability of a substance to undergo a specific chemical change |
| Chemical Reaction | A change in which one or more reatants change into one or more products; breaking bonds and forming new ones |
| Reactant | A substance present at the start of a chemical reaction. |
| Product | A substance produced by a chemical reaction. |
| Precipitate | A solid that forms and settles out of a liquid |
| Law of Conservation Of Mass | In any physical change or chemical reaction |
