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5 Written Questions

5 Matching Questions

  1. unstable water
  2. plaster of paris
  3. coal
  4. sand
  5. baking soda
  1. a hydrogen peroxide
  2. b sodium bicarbonate
  3. c peat
  4. d calcium shulphate
  5. e silicon oxide

5 Multiple Choice Questions

  1. iron oxide
  2. ammonia solution
  3. sodium nitrate
  4. sulphuric acid
  5. citric acid

5 True/False Questions

  1. limestonequartz

          

  2. Washing Soda Crystalssodium bicarbonate

          

  3. cinnabarpeat

          

  4. quicksilverphosphoric acid

          

  5. soda ashpotassium chloride

          

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