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UNIT 2: Solutions

Covers Unit 3 over Water and Solutions

TermDefinition
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 A blended combination of solute and solvent together.
Water is called the _______ _______ because its polar nature allows it to dissolve many things. Universal Solvent
On a solubility curve, if a point is ON the line, the solution is ______. saturated
"Like Dissolves Like" The saying describing what type of solutions dissolve best in others. "Polar dissolves polar". "Non-polar dissolves non-polar".
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 How well a substance dissolves.
3 ways to increase the dissolving rate of a solid = 1. Stir it (Agitation) 2. Crush it (Smaller particles) 3. Heat it up (Increase Temp)
Soluble means the substance ___. Dissolves
Insoluble means the substance _____. Does not dissolve
On a solubility curve, if a point is ABOVE the line, the solution is ______. Supersaturated
On a solubility curve, if a point is BELOW the line, the solution is ______. unsaturated
Saturated means just the right amount of solute dissolved.
Super-saturated means too much solute was dissolved.
Unsaturated means not enough solute was dissolved. You could dissolve more.
What state of matter has the highest kinetic energy? Gas
What state of matter has the lowest kinetic energy? Solid
What state of matter has a fixed shape and volume? Solid
What state of matter has a fixed volume, but takes the shape of its container? Liquid
What state of matter has no fixed volume or shape? Gas
What is the only state of matter that is easily compressible? Gas
What state of matter has the strongest attractive forces? Solid
What state of matter has the weakest attractive forces? Gas
Melting is transitioning from ____ to _____. solid to liquid
Freezing is transitioning from ____ to _____. liquid to solid
Condensing is transitioning from ____ to _____. gas to liquid
Evaporating is transitioning from ____ to _____. liquid to gad
Sublimation is transitioning from ____ to _____. solid to gas
Deposition is transitioning from ____ to _____. gas to solid
Created by: kpartin
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