Chem 4.2 Test for Negative ions 0.0 / 5 ? ChemistryTesting and analysing substancesGCSEAQA Created by: DanCreated on: 13-04-13 11:49 How can we identify carbonates? Adding dilute acid which produces carbon dioxide gas. This gas will turn lime water cloudy 1 of 6 How can we identify halides? Adding nitric acid then silver nitrate solution. This produces a precipitate of silver halide 2 of 6 State what colour precipitate is formed by each halide: Chlorine White 3 of 6 Bromide Cream 4 of 6 Iodide Pale yellow 5 of 6 How do we identify sulphates? Adding hydrochloric acid, then barium chloride solution will create a white precipitate of barium sulphate 6 of 6
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