| A | B |
|---|
| matter | has mass & takes up space |
| mixture | consists of 2 or more substances |
| mass | amount of matter in object |
| substance | pure sample of matter |
| compound | composed of 2 or more elements |
| element | cannot be decomposed |
| homogeneous | uniform composition |
| heterogeneous | not uniform throughout |
| properties | characteristics by which a substance is identified |
| physical property | can be observed w/o production of new substances |
| chemical property | how substance interacts with other substances |
| physical change | no new substance(s) formed |
| chemical change | new substance(s) formed |
| Lavoisier | Law of Conservation of Mass |
| Chemical symbol | abbreviation for element name |
| solution | homogeneous mixture |
| solid | definite shape and volume |
| liquid | definite volume, takes shape of its container |
| gas | Takes shape and volume of its container |
| Elementary particles | Protons, neutrons, and electrons |
| Proton | found in nucleus, Positively charged |
| Neutron | Found in nucleus no charge |
| Electron | Orbits the nucleus, negative charge |
| Law of Definite proportions | Composition of a compound is always the same |
| Aqueous solution | water is the solvent |
| Tincture | alcohol is the solvent |
