chemistry

  • Created by: aya__08
  • Created on: 24-01-18 12:06

testing for negative ions

Tests for carbonates:

- dilute acid to a carbonate, it fizzes and produces carbon dioxide gas.

Tests for halides:

- add nitric acid to dissolve in the compound and to remove only carbonate ions. forms a precipitate with silver ions. (iodide, yellow precipitate)(bromide, cream precipitate)(chloride, white precipitate)

Tests for sulfates:

add hydrochloric acid, followed by barium chloride solution. then add the acid which will then form a white precipitate.

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