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PhysicalScience4
| Question | Answer |
|---|---|
| Element | A pure substance that cannot be seperated or broken into simpler substances by physical or chemical means |
| Pure Substance | A substance in which there is only one type of particle; includes elements and compounds |
| Metals | Elements that are shiny and are good conductors of thermal energy and electric current; most metals are malleable and ductile |
| Non-metals | Elements that are dull and are poor conductors of thermal energy and electric current |
| Metalloids | Elements that have properties of both metals and nonmetals; reffered to as semiconductors |
| Compound | A pure substance composed of two or more elements that are chemically combined |
| Mixture | A combination of two or more substances that are not chemically combined |
| Solution | A mixture that appears to be a single substance but is composed of particles of two or more substance that are distributed evenly amongst each other |
| Solute | The substance that is dissolved to form a solution |
| Solvent | The substance in which a solute is dissolved to form a solution |
| Concentration | A measure of the amount of solute dissolved in a solvent |
| Solubility | Ability to dissolve in another substance; more specifically, the amount of solute needed to make a saturated solution using a given amount of solvent at a certain temperature |
| Suspension | A mixture in which particles of a material are dispersed throughout a liquid or gas but are large enough that they settle out |
| Colloid | A mixture in which the particles are dispersed throughout but are not heavy enough to settle out |
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