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Chapter 4
Mixtures, Elements, and Compounds
| Term | Definition |
|---|---|
| Mixture | Matter that consists of two or more substances mixed together but not chemically combined. |
| Heterogeneous Mixture | A mixture that does not appear to be the same throughout. "Least Mixed" The particles are large enough to be seen and to separate from the mixture. |
| Homogeneous Mixture | A mixture that appears to be the same throughout. "Well-Mixed" The particles that make up the mixture are very small and not easily recognizable. |
| Solution | A type of homogeneous mixture of two or more substances in a single physical state. "Best-mixed" |
| Solute | The substance that is dissolved in a solution. |
| Solvent | The substance that does the dissolving in a solution. |
| Soluble | A substance that is able to be dissolved in another substance. |
| Insoluble | A substance that is not able to be dissolved in another substance |
| Solubility | The amount of a solute that can be completely dissolved in a given amount of solvent at a specific temperature. |
| Alloys | Metal solutions. |
| Pure substance | A substance that is the same throughout, is made up of only one type of material, and has a definite properties. |
| Element | The simplest pure substance. It cannot be changed into a simpler substance by heating or by any chemical process. |
| Atom | The smallest particle of an element that has properties of that element. |
| Compound | Pure substances that are made of more than one element. |
| atom mass | which is the combined mass of the protons and neutrons in the nucleus. |