2678203
Description
Mind Map by bella.mort, updated more than 1 year ago
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Created by bella.mort
over 9 years ago
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Tests for negative ions
- Carbonate ions
- Add dilute hydrochloric acid to the
substance to see if it fizzes. If it does and
the gas turns limewater milky, the
substance contains carbonate ions.
- Add dilute hydrochloric acid to the
substance to see if it fizzes. If it does and
the gas turns limewater milky, the
substance contains carbonate ions.
- Halide ions
- Add dilute nitric acid and then silver nitrate solution
- Chloride ions: White precipitate
- Bromide ions: Cream precipitate
- Iodide ions: Yellow precipitate
- Chloride ions: White precipitate
- Add dilute nitric acid and then silver nitrate solution
- Sulfate ions
- Add dilute hydrochloric acid and then barium chloride solution.
- If a white precipitate forms, sulfate ions are present.
- If a white precipitate forms, sulfate ions are present.
- Add dilute hydrochloric acid and then barium chloride solution.
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