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15 Cards in this Set

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how do impurities affect a substance?
lowers melting point

raises boiling point

boils or melts over a range of time, not at a particular point.
What can melting and boiling point tell us?
identity of a substance

purity of a sample
phase
parts of a mixture
miscible
the combination make a solution
solution
(dissolved)
solid in liquid
two liquids
gas in liquid
mixture (not obvious defn)
gas and gas
suspension
heterogeneous
cloudy, solids suspended in liquid
gel
heterogeneous
jelly-like, liquid trapped in solid
emulsion
heterogeneous
two immiscible liquids, cloudy
aerosols
heterogeneous
small liquid or solid droplets inside a gas
foam
heterogeneous
gas in liquid
solid foam
gas in solid
emulsifier
substance that stops emulsions from separating out into layers
difference between suspensions and colloids
s contains visible particles that eventually settle out

c contains particles too small to be seen
parts of colloid
dispersed phase- split into very small particles

continuous phase- contains dispersed phase