Mixtures of Matter

Classification of Matter

Classification of Matter

Classification of Matter

Classification of Matter

Classification of Matter

Classification of Matter

Classification of Matter

Classification of Matter

Classification of Matter

Classification of Matter

Substance

Matter that has a uniform and unchanging composition

MixtureCombination of 2 or more pure

substances

They are physically mixed but, don’t react

Heterogeneous

Does not blend smoothly and individual substances remain distinct

Sand and water; orange juice; pizza

Homogeneous Mixture

Constant composition throughout

Homogenous Mixture - Is a single phase

AKA - Solution

Salt water

Two types of pure substances:

Elements

Compounds

Element:

A pure substance that cannot be separated into simpler substances

by chemical or physical means

Found on periodic table

91 naturally occurring, the rest man made

Compound:

Combination of two or more elements

1 Million compounds and 100,000 more found every year.

Water; hydrogen peroxide

Has mass and volume (s, l, g)

More than one type of matter

Uniform throughout (solutions)

Not uniform throughout

One type of matter

One type of atom

Two or more

elements

Separating Mixtures

Reverse of Mixing

Helps to understand matter

Use physical processes used to separate solutions

Filtration

-Technique that uses a porous barrier to separate a solid from a liquid.

-Separate heterogeneous mixtures composed of solids and liquids.

Distillation-Separation technique based on differences on boiling points.

-Separates a liquid from a liquid.

Crystallization

formation of pure solid particles from a solution

Chromatography

Separates on tendency of chemical to

travel.

Separation of Pure Substances

• Requires chemical means