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UNIT 3: SOLUTIONS
Covers Unit 3 over Water and Solutions
| Term | Definition |
|---|---|
| Polar molecule | A molecule with a positive and a negative end |
| Solute | Whatever is BEING DISSOLVED into a solution (the smaller amt.) |
| Solvent | Whatever is doing the dissolving in a solution (the larger amt.) |
| Solution | |
| Water is called the _______ _______ because its polar nature allows it to dissolve many things. | Universal Solvent |
| Covalent bonding | Type of bonding between oxygen and hydrogen atoms within the SAME water molecule. |
| "Like Dissolves Like" | The saying describing what type of solutions dissolve best in others. "Polar dissolves polar". "Non-polar dissolves non-polar". |
| Viscosity | A substances resistance to flow. Thick substance = high viscosity Runny, thin substance = low viscosity |
| Buoyancy | The ability or tendency of something to float. |
| Boiling point | The temperature at which a substance goes through a phase change from a liquid to a gas. |
| Freezing point | The temperature at which a substance goes through a phase change from a liquid to a solid. |
| Dissolving rate | The rate at which a solute dissolves completely into a solute |
| Solubility | The max amount of a substance that will dissolve in a given amt. of solvent at a given temperature. |
| 3 ways to increase the dissolving rate of a substance = | 1. Stir it 2. Crush it 3. Heat it |
| Soluble | Dissolves |
| Insoluble | Does not dissolve |
Created by:
kpartin
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