IGCSE CHEMISTRY
MIXTURES
C1 THE PARTICULATE NATURE OF MATTER AND C2 EXPERIMENTAL TECHNIQUES
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Before you start you can look back at 8EF Elements, Mixtures and Compounds.
If you only remember one thing: IN A MIXTURE THE SUBSTANCES ARE NOT CHEMICALLY JOINED. tHEY CAN BE SEPARATED BY (FRACTIONAL) DISTILLATION, FILTRATION, CRYSTALLISATION AND CHROMATOGRAPHY. |
This is the third of the 14 Chemistry units:
Atoms (C1-3) Compounds (C1-3) Mixtures (C2,3) C4. Stoichyiometry C5. Electricity and Chemistry C6. Energy Changes in Chemical Reactions C7. Chemical Reactions C8. Acids, Bases and Salts C9. The PeriodicTable C10. Metals C11. Air and Water C12. Sulphur C13. Carbonates C14. Organic Chemistry |
USEFUL LINKS
- Try this bitesize quiz on separation techniques.
- Click here for the bitesize notes pages for this topic.
USEFUL VIDEOS AND PRESENTATIONS
A video from BBC Bitesize showing separation techniques (sorry it is low quality)
A video explaining the basics of separation techniques. It explains how water is purified for drinking too.
Chromatography from Fuse School.
Some distillation demonstrations
Fractional distillation from Fuse School
Uses of crude oil fractions from Fuse School
Separation of liquids that have different densities using a separating funnel.
