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Mixtures
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Slide 1

Mixtures

Mixtures

Unit III Properties of Matter

Slide 2

BELLWORK

BELLWORK

What is a mixture?

How can it be separated?

Can you provide another example?.

Slide 3

BELLWORK

BELLWORK

Slide 4

Mixtures

Mixtures

A mixture is a physical blend of two or more substances.

Their composition varies (Air).

There are two types of mixtures: homogenous and heterogenous

Slide 5

Mixtures

Mixtures

Heterogenous mixtures

Is the type of mixture that is not uniform in composition.

If you were to sample one portion of such a mixture, its composition would be different from that of another portion.

Slide 6

Mixtures

Slide 7

Mixtures

Mixtures

Homogenous mixture

Is the type of mixture that has a completely uniform composition throughout itself.

Its components are evenly distributed throughout the sample.

Slide 8

Mixtures

Slide 9

Homogenous or Heterogenous?

Homogenous or Heterogenous?

Air

Salt water

Tea

Brass

Vinegar

Hydrogen peroxide

Steel

Salad dressing

Apple

Sand

Paint

Granite

Laundry detergent

Cereal

Slide 10

Solutions

Solutions

Is the special name that scientists give to homogenous mixtures.

Solutions may be gases, liquids or solids.

An example: solution of sugar in water.

Slide 11

Solutions

Solutions

Slide 12

Phases

Phases

Any part of a system with uniform composition and properties is called a phase.

On a homogenous mixture you have one phase only.

On a heterogenous mixture you have two or more phases.

Slide 13

Phases in a heterogenous mixture

Phases in a heterogenous mixture

Slide 14

Phases in a homogenous mixture

Phases in a homogenous mixture

Slide 15

Separating Mixtures

Separating Mixtures

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