Puzzle 1: Chemical Tests & Qualitative Analysis

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  1. 3. The element present in the reagent used with dilute HNO₃ to test for halide ions is __________
  2. 7. The colour of the precipitate formed when testing chloride ions Cl⁻ with silver nitrate is __________
  3. 9. The gas released when warming ammonium ions NH₄⁺ with sodium hydroxide is __________ which turns damp red litmus blue
  4. 10. The colour of the precipitate formed when testing iodide ions I⁻ with silver nitrate is __________
  5. 12. The colour of the precipitate formed when sodium hydroxide is added to iron(II) ions Fe²⁺ is __________
  6. 13. The flame test colour for lithium ions is __________
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  1. 1. The colour of the precipitate formed when testing bromide ions Br⁻ with silver nitrate is __________
  2. 2. The flame test colour for copper ions is __________
  3. 4. The solution that turns milky when carbon dioxide is bubbled through it is __________
  4. 5. The flame test colour for potassium ions is __________
  5. 6. The colour of the precipitate formed when sodium hydroxide is added to copper ions Cu²⁺ is __________
  6. 7. The colour of the precipitate formed when sodium hydroxide is added to aluminium ions Al³⁺ is __________
  7. 8. The element present in the reagent used with dilute HCl to test for sulfate ions SO₄²⁻ is __________
  8. 10. The flame test colour for sodium ions is __________
  9. 11. The colour of the precipitate formed when sodium hydroxide is added to iron(III) ions Fe³⁺ is __________
  10. 14. The flame test colour for calcium ions is __________