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Colloids

Examples and descriptions of heterogeneous mixtures

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Whipped Cream

What exactly is whipped cream?

Credit: Alex Gorzen
Source: http://commons.wikimedia.org/wiki/File:Strawberry_Milkshake.jpg
License: CC BY-NC 3.0

[Figure1]

A colloid is a homogeneous mixture that is evenly, microscopically dispersed. In a colloid, the mixture looks the same throughout and the particles cannot settle out over time. Common examples of colloids are milk, paint, lotion, smoke, and air. Is whipped cream a colloid? To determine this, we must go through our checklist.

Creative Applications

1.     Is whipped cream a mixture?

2.     Is it homogenous?

3.     Would the particles in whipped cream settle out over time?

If you answered yes to the first two and no to the last one, you got it right!  


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Image Attributions

  1. [1]^ Credit: Alex Gorzen; Source: http://commons.wikimedia.org/wiki/File:Strawberry_Milkshake.jpg; License: CC BY-NC 3.0

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