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Heterogeneous Aqueous Solutions. Section 17.4. After reading Section 17.4, you should know:. The difference between a suspension, colloid, and solution How to describe the Tyndall Effect. Suspensions. Mixtures from which particles settle out upon standing. Heterogeneous Particle size ~ 1nm

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after reading section 17 4 you should know
After reading Section 17.4, you should know:
  • The difference between a suspension, colloid, and solution
  • How to describe the Tyndall Effect
suspensions
Suspensions
  • Mixtures from which particles settle out upon standing.
    • Heterogeneous
    • Particle size ~ 1nm
    • Example – sand and water or muddy water
colloids
Colloids
  • Heterogeneous mixtures containing particles that are intermediate in size between suspensions and solutions
    • Particle size 1nm – 100nm
    • Cloudy or milky in appearance
    • Examples: gelatin, smoke or whipped cream
slide6

Emulsions – colloidal dispersions of liquids in liquids

    • Will cause a polar and nonpolar substances to mix
after reading section 17 4 you should know7
After reading Section 17.4, you should know:
  • The difference between a suspension, colloid, and solution
  • How to describe the Tyndall Effect