Classification of Matter

-Matters can be classified into Homogeneous substances & Heterogeneous substances
-Homogeneous: consists of only 1 visible component
  -e.g. water, oxygen, graphite, air, brass
-Heterogeneous: contains more than 1 visible component
  -e.g. granite, chocolate chip cookie, sand

                                                                   / Solution
                                      / Homo. Mixtures
            / Homogeneous                                    / Element (e.g. oxygen, Iron)
Matter                                \ Pure Substances
            \ Heterogeneous                                  \ Compound (e.g. water, sugar)
                                       \ Mechanical Mixtures



p.s. Solution   - 2 or more substances
                       - usually involves liquid (e.g. fog, steel)
                       - component in greater amount=solvent
                          - water is the most common solvent
                          - (aq) is used when sth is dissolved in water
                       - component in smaller amount=solute

Seperating Mixtures

-Many methods
    - By hand
    - Filtration      -->   Physical
    - Distillation   -->   Changes
    - Crystallization
    - Chromatography


By Stan K.