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chapter 15
| Term | Definition |
|---|---|
| Chemical change | A change of one substance to another. |
| Chemical property | A characteristic of a substance that indicates whether it can undergo a certain chemical change. |
| Compound | A substance in which the atoms of two or more elements are combined in a fixed proportion. |
| Distillation | The process for separating substances in a mixture by evaporating a liquid and recondensing its vapor. |
| Element | All the atoms in a substance that have the same identity. |
| 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. |
| 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. |
| Physical change | A change in size, shape, or state of matter. |
| Physical property | Any characteristic of a material that you can observe without changing the identity of the substances that make up the material. |
| Solution | A homogeneous mixture of particles so small that they cannot be seen with a microscope and will never settle to the bottom of their container. |
| Substance | A type of matter with a fixed composition. |
| Suspension | A heterogeneous mixture containing a liquid in which visible particles settle. |
Created by:
ncarey99
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