Chemistry Chemical Tests

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Across
  1. 2. colour of limewater after carbon dioxide is added
  2. 3. colour of precipitate when sodium hydroxide is mixed with Copper (II) ions
  3. 4. ion that burns with an orange-red flame when doing a flame test
  4. 5. gas that relights a burning splint
  5. 8. name of solution added to the test for sulfate ions to remove any carbonate ions present
  6. 12. ion that burns with a yellow flame
  7. 13. colour of precipitate when testing for sulfate ions
  8. 14. group of atoms that are tested by using nitric acid and silver nitrate
Down
  1. 1. ion that gives a blue-green flame in a flame test
  2. 2. name of gas given off when hydrochloric acid is added to carbonates
  3. 4. gas that bleaches damp blue litmus paper
  4. 6. colour of precipitate when NaOH is added to iron 2+ ions
  5. 7. ion that gives a red-brown precipitate when sodium hydroxide solution is added
  6. 9. gas that turns damp red litmus paper red
  7. 10. ion that burns with a red flame in a flame test
  8. 11. name of substance used to test for carbon dioxide
  9. 15. colour of flame when K+ ions are present