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Chemistry - Coggle Diagram

- - - - magnetic material and non-magnetic material
  - - - obtain filtrate (liquid) and residue (solid )
  - - - obtain saturated solution after heating -- leave to cool -- filtration -- dry the crystals -- repeat experiment to obtain more crystals
  - - - different sizes, one can fit through pores of the sieve the other cannot
  - - - most dense at the bottom, least dense at the top
        
        open the tap at the bottom to release all of one liquid out first
- - - - 1kilo ton = 1000tons = 1 000 000kg
- - - - filtration
      - obtain solvent from solution
        
        simple distillation
    - - requires gentle heating
        
        crystallisation
      - does not decompose under strong heating
        
        evaporation to dryness
  - - - different solubilities
        
        chromatography
    - - separating funnel
    - - fractional distillation
  - - - sieving
    - - magnetic attraction
    - - using suitable solvent
- - - - not suitable for the gases that will react with sulfuric acid
  - - - cannot be used with gases that react with calcium oxide, heated before use also as readily absorbs moisture
  - - - readily absorbs moisture thus must be freshly heated before use
- - - - e.g. hydrogen, oxygen, carbon dioxide
  - - - gases more dense than air
        
        e.g. chlorine, hydrogen chloride, sulfur dioxide
    - - gas less dense than air
        
        e.g. ammonia