heterogeneous mixtures

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Heterogeneous Mixtures : 

Heterogeneous Mixtures December 3, 2010

Objectives : 

Objectives Compare and contrast a solution, suspension and a colloid Describe and give examples of suspensions and colloids

Solutions : 

Solutions Have dissolved particles Do not separate Cannot be filtered Do not scatter light

Slide 5: 

The individual components of a mixture are present in similar amounts regular amounts fixed amounts different amounts

Slide 6: 

Which of the following is a homogeneous mixture? fruit salad kool aide chocolate chip cookie a bowl of yogurt and fruit

Slide 7: 

What is considered to be the universal solvent?

Suspensions : 

Suspensions A heterogeneous mixture in which particles of the material are dispersed throughout a liquid or gas. The particles in a suspension are insoluble, so they settle out. Can be separated by passing them through a filter.

Examples of Suspensions : 

Examples of Suspensions Snow globes Muddy water Salad dressing Paint

Colloids : 

Colloids A colloid is a mixture that has the properties of both a solution and a suspension.

Colloids : 

Colloids Particles are small but do not dissolve Mixture can not be separated by passing them through a filter.

Slide 12: 

The particles in a suspension are _________ than the particles in a colloid. A. larger B. smaller C. more soluble D. less soluble

Tyndall effect : 

Tyndall effect Colloidal suspensions can scatter rays of light.

Slide 16: 

How are colloids similar to solutions? Both are mixtures Both contain dissolved solutes Both can be separated Both scatter beams of light

Examples of Colloids : 

Examples of Colloids Fog Whipped cream Milk & Cheese Blood plasma Jell-o

Slide 18: 

If the label on a medicine bottle says "shake well before using", the medicine is probably a solution suspension colloid compound

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