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Ch. 15
Vocab
| Term | Definition |
|---|---|
| Substance | a type of matter with a fixed compositions. |
| Element | A substance with the same atoms |
| Compound | A substance in which the atoms of two or more elements are combined in a fixed proportion |
| Heterogeneous Mixture | A mixture in which different materials can be distinguished easily |
| Homogeneous Mixture | Contains two or more gaseous, liquid, or solid substances blended evenly throughout. |
| Solution | A homogeneous mixture of particles so small they cannot be seen with a microscope and will never settle to the bottom their container |
| Colloid | A type of mixture with particles larger than those in solutions but not heave enough to settle out. |
| Tyndall effect | The scatter of light by colloidal particles |
| Suspension | A heterogenous mixture containing a liquid in which visible particles settle. |
| Physical property | Any characteristic of a material that you can observe without changing the identity of the substances that make up the material. |
| Physical change | A change in size, shape, or state of matter. |
| Distilation | The process for separating substances in a mixture by evaporating a liquid and recondensing its vapor |
| Chemical property | A characteristic of a substance that indicates whether it can undergo a certain chemical change. |
| Chemical change | A change of one substance to another. |
| Law of Conservation of mass | The mass of all substances that are present before a chemical change equals the mass of all the substances that remain after the change. |
Created by:
airiktorrescruz
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