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Chemical tests (Testing for... (Carbon dioxide (Pump gas you want to test…

- - - - Observations
        
        Limewater turns cloudy
  - - - Observations
        
        Damp red litmus paper turns blue immediately and has a strong smell
  - - - Observations
        
        Flame relights
  - - - Observations
        
        damp blue litmus paper turns red then white
  - - - Put magnesium ribbon in a test tube cover with hydrochloric acid. Then light a splint and put it in the test tube.
        
        Observations
        
        Squeaky pop sound
- - - - Result
        
        Lime Water goes cloudy
        
        ionic equation
        
        CO32-(aq) + 2H+ (aq) → CO2g + H2O (l)
  - - - Iodine/ I-
        
        Yellow precipitate
      - Chloride
        
        White precipitate
      - Bromide/Br-
        
        off white cloudy precipitate
  - - - results
        
        White precipitate
        
        Ionic equation= so42- + Ba2+ ---} Baso4
  - - - white precipitate
- - - - Add NaOH
        
        You will get a brown precipitate
    - - Add NaOH. Test gas given off with damp red litmus paper
        
        Litmus turns blue
    - - Add NaOH sodium hydroxide
        
        You will get a green precipitate
        
        Ionic equation Fe2 + 2OH- Fe(oh)2(s)
    - - Add sodium hydroxide NaOH
        
        You will get a blue-green precipitate
  - - - Yellow flame
    - - Lilac Flame
    - - Red flame
    - - Orange-red flame
    - - Then put into flame
- - - - Add water or what you want to test for water
        
        If it turns blue then water is present
  - - - The boiling point
        
        100c.
        
        If it boils at this point you have pure water
      - Freezing point
        
        0c
        
        If it freeze at this point you have pure water