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Chemistry Test 12
Mrs. Cribb-- Ellie Kearney
| Question | Answer |
|---|---|
| The more concentrate a solution is, the _____ the boiling point elevation will be. | greater |
| Ionic compounds ____into ions in a solution | break apart |
| Covalent Compounds ____ into molecules | separate |
| Exothermic | heat is being released |
| Endothermic | heat is being absorbed |
| Entropy | dispersion of matter and energy |
| Solvent | most abundant substance |
| solute | least abundant substance |
| Miscible | "mixable" |
| Immiscible | "not mixable" |
| Gas can only mix with other ____ | gases |
| To be dissolved in a liquid solution, attractive inter-molecular forces must be _______ | overcome |
| Solvation | dissolving solids in liquids; molecules of a solvent surround and separate molecules of a solute |
| Hydration | Solvation in water |
| Dissociation | if a solute is ionic, solvent molecules break up the crystal into ions |
| Ionization | covalent compounds form ions when they dissolve |
| Diffusion | solids and gases mix mostly by this |
| If it is ionic, it will _____ in a polar solvent. | dissolve |
| Polar dissolves ____ | polar |
| Non-polar dissolves_________ | non-polar |
| Soluble | able to be dissolved |
| Insoluble | NOT able to be dissolved |
| Unsaturated | you can add more to a solution |
| Saturated | holding the most solute at that given temperature |
| Supersaturated | holding more solute than the solution is supposed to |
| Dynamic Equilibrium | when forming a salt and dissolving a salt happen at the same rate (you see no net change in the clump at the bottom of the container) |
| Factors that affect the rate of solution | -Temperature -Number of Collisions -Surface Area |
| Factors that affect solubility | -Temperature -Pressure |
| Concentration | measure of the number of solute particles in a certain volume of the solution itself |
| solvent+ solute = _____ | solution |
| Colligative Property | Physical property of a solution that depends ONLY on the # of particles present |
| Solute particles ____ vapor pressure and ____ the boiling point | lower; raise |
| It take a _____ temperature for the vapor pressure to equal atmospheric pressure. | higher |
| Osmosis | process in which a solvent moves across a semipermeable membrane |
| Osmotic Pressure | amount of pressure required to prevent osmosis from occuring |
| Suspensions | mixtures that contain larger particles that eventually settle out |
| Solutions | homogeneous mixtures that DO NOT SEPARATE |
| Colloids | NOT a solution; contain small particles dispersed in a medium |
| Tyndall effect | used to distinguish colloids from solutions |
Created by:
ellikens
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