What is a mixture? Identify the different ways mixtures can be separated Distinguish mixture from compound.

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Presentation transcript:

What is a mixture?

Identify the different ways mixtures can be separated Distinguish mixture from compound

A mixture: Two or more substances are mixed together But they are not chemically combined Substances can be physically separated

Demonstration #1 1.Beaker of Sand 2.Beaker of Iron Can be separated? How? Magner

Separating Mixtures

Demonstration #2 1.Beaker of water 2.Beaker of Salt Add salt to water. Can it be separated. How? Magner

Distillation: Boiling + Cooling

Is boiling and condensation A physical change Or A chemical change

Demonstration #3 1.Beaker of spaghetti 2.Beaker of water Mix together. Can it be separated. How?

Separating Mixtures

Panning for Gold

Filtering with filter paper

Fish Filter

Pool Filter

Filtration Strainer filter paper “ panning for gold”, coffee makers,

Demonstration #4 Chromatography

Centrifuge Used a lot to separate blood cells from blood plasma

Ways to separate Mixtures Filtering Centrifuge Boiling or freezing, or any phase change Chromatography Using a magnet