Ion Tests 0.0 / 5 ? ChemistryTesting and analysing substancesGCSEEdexcel Created by: laurenzoe101Created on: 09-04-16 18:41 Testing for Metal Ions Some metal ions can be indentified with the flame test. A damp splint is placed into the solid and held in the Bunsen burner flame. The colour of the flame identifies the metal. Sodium - Yellow Potassium - Lilac Calcium - Red Copper - Blue/Green 1 of 4 Testing for Carbonate Ions 1. Add dilute acid to a substance. 2. Test gas given off with limewater. It will fizz or bubble as a gas is given off. The gas will turn the limewater milky/cloudy. 2 of 4 Testing for Chloride Ions 1. Add a few drops of dilute nitric acid and shake. 2. Add a few drops of silver nitrate. If chloride ions are present then a white precipitate of silver chloride will form. 3 of 4 Testing for Sulphate Ions 1. Add a few drops of dilute hydrochloric acid and shake. 2. Add a few drops of barium chloride solution. A white precipitate of barium sulphate will form if sulphate ions are present. 4 of 4
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