Colloids and suspensions are heterogeneous mixtures Suspensions and Colloids Suspensions and colloids are NOT solutions Suspensions The particles are so large that they settle out of the solvent if not constantly stirred ID: 242392
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Slide1
Suspensions and ColloidsSlide2
Colloids and suspensions are heterogeneous
mixturesSlide3
Suspensions and Colloids
Suspensions and colloids are NOT solutions.
Suspensions
: The particles are so large that they settle out of the solvent if not constantly stirred.
Colloids
: The particle is intermediate in size between those of a suspension and those of a solution.Slide4
Smog – A SuspensionSlide5
Types of Colloids
Examples
Dispersing Medium
Dispersed Substance
Colloid Type
Fog, aerosol sprays
Gas
Liquid
Aerosol
Smoke, airborne bacteria
Gas
Solid
Aerosol
Whipped cream, soap suds
Liquid
Gas
Foam
Milk, mayonnaise
Liquid
Liquid
Emulsion
Paint, clays, gelatin
Liquid
Solid
Sol
Marshmallow, Styrofoam
Solid
Gas
Solid foam
Butter, cheese
Solid
Liquid
Solid emulsion
Ruby glass
Solid
Solid
Solid solSlide6
The Tyndall Effect
Colloids scatter light, making a beam visible. Solutions do not scatter light.
Which glass contains
a colloid?
solution
colloid