Pre-requisite Packet

Matter

Has mass & occupies space

Gas

Not Fixed volume, not fixed shape, not fixed compression

Liquid

Fixed volume, not fixed shape, fixed compression

Solid

Fixed volume, fixed shape, fixed compression

Al

• 10% (less)

• 3+

Ca

• 3%

Fe

• 5%

• 2,3+

Cu

• 2+

Mg

2%

Hg

• 1,2+

• very dense

• dissolves many metals

O

• 50%

K

• 2%

Si

• 25%

Na

3%

Compound

• non-pure

• fixed composition ratio

• into constituents: heat or electrolysis (usually liquid)

Mixture

• Composition ratio vary

• Each substance retains its chemical identity

• Homogeneous/heterogeneous

Discovery of oxygen

• Joseph Preistley

• by extreme intense sunlight on Hg

Homogeneous

• Uniform

• Solution (solvent [l] & solutes)

• Seawater

Heterogeneous

• Non-uniform

• rocks

Filtration

• Heterogeneous [s & l]

• pores

Distilation

• Homogeneous

• vaporization

Chromatography

• Alot of types