| A | B |
|---|
| property | characteristic or essential quality |
| substance | type of matter with fixed composition |
| element | substance made up of atoms that are all alike |
| compound | substance in which atoms of 2 or more elements are chemically combined in fixed proportion |
| heterogeneous mixture | mixture in which different material remain distinct |
| suspension | heterogeneous mixture of liquid and solid particles that settle |
| colloid | heterogeneous mixture with particles that do not settle |
| Tyndall effect | scattering of light beam through colloid |
| homogeneous mixture | remains constantly and uniformly mixed, Not settle |
| solution | same as homogeneous mixture |
| boiling point | temperature at which vapor pressure of liquid is equal to external pressure on surface |
| physical property | observed characteristic of material without changing identity of substance |
| physical change | change is size, shape, or state of matter in which substance stays the same |
| distillation | separate substances by evaporation and cooling |
| chemical property | observed characteristic of material that produces new substance |
| chemical change | change one substance to another |
| law of conservation of mass | total mass of reactants = total mass of products |
