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6. How do you test for an ammonium ion?

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

7. What do u add to dissolve the bromine preciptate?

  • Excess barium nitrate
  • Concentrated ammonia
  • Excess silver nitare
  • Dilute ammonia

8. What do u add to a solution to test for carbonate ions?

  • Dilute acid
  • Barium nitrate
  • Silver nitrate
  • Sodium hydroxide

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

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

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