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6. What is the first thing you add to test for a halide ion ?

  • Add silver nitrate
  • Add chlorine
  • Add sodium hyroxide
  • Add concentrated ammonia

7. What are the observations for the sulphate reaction?

  • Dissovles
  • Barium sulphate precipitate in a blue solution
  • Barium sulphate precipitate in a colourless solution
  • Fizzes as co2 gas given off

8. What do u add to dissolve the chloride precipitate ?

  • Dilute ammonia
  • Excess silver nitrate
  • Concentrated ammonia
  • Barium nitrate

9. How do you test for an ammonium ion?

  • Add a dilute acid
  • Gently heat
  • Add sodium hydroxide and gently heat
  • Add sodium hydroxide

10. What are the obersavations of the testing for chloride reaction and why does this happen?

  • Fizzes because co2 gas is given off
  • Fizzes because oxygen is given off
  • Catches fire
  • Dissolves