5. Testing for Ions Name of metal ion

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Presentation transcript:

4. What substance do we use to test for the cations in the table below? 5. Testing for Ions Name of metal ion Colour of Precipitate (insoluble hydroxides with characteristic colours) Ionic Equation Copper Iron (II) Iron (III) 1. Starter: What is the difference between a cation and an anion? 2. Write a procedure for carrying out a flame test for positive metal ions. 6. What procedure is used to test for the anions in the table below? 7. Name of anion Symbol of ion Colour of Precipitate Ionic Equation Chloride Bromide Iodide 3. Complete the table to show what colour flame would be expected for each ion in a flame test . Name of Ion Symbol of ion Flame Colour Sodium Potassium Calcium Lithium 8. What is the procedure and result when testing for: Sulphate ions: SO42- : Carbonate ions CO32- : Ammonium ions NH4+ :