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15 Cards in this Set
- Front
- Back
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how do impurities affect a substance?
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lowers melting point
raises boiling point boils or melts over a range of time, not at a particular point. |
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What can melting and boiling point tell us?
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identity of a substance
purity of a sample |
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phase
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parts of a mixture
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miscible
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the combination make a solution
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solution
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(dissolved)
solid in liquid two liquids gas in liquid |
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mixture (not obvious defn)
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gas and gas
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suspension
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heterogeneous
cloudy, solids suspended in liquid |
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gel
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heterogeneous
jelly-like, liquid trapped in solid |
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emulsion
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heterogeneous
two immiscible liquids, cloudy |
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aerosols
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heterogeneous
small liquid or solid droplets inside a gas |
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foam
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heterogeneous
gas in liquid |
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solid foam
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gas in solid
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emulsifier
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substance that stops emulsions from separating out into layers
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difference between suspensions and colloids
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s contains visible particles that eventually settle out
c contains particles too small to be seen |
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parts of colloid
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dispersed phase- split into very small particles
continuous phase- contains dispersed phase |
