tests

• how do you test for sulfur ions?

  1. add a few drops of dilute hydrochloric acid
  2. add a few drops of dilute barium chloride solution
  3. observe a white precipitate forming
• how do you test for carbonate ions?

  1. add a few drops of acid - this will cause effervescence when bubbled into lime water
  2. the limewater will turn cloudy
• what is the oxygen test?

  • glowing splint
  • result: splint relights
• what is the hydrogen test?

  • lit splint
  • result: squeaky pop
• what is the carbon dioxide test?

  • bubble gas through limewater
  • result: limewater turns cloudy
• what is the chlorine test?

  • damp blue litmus paper
  • result: bleaches white