Potassium ion flame - Lilac flame, Copper ion flame - Green-blue flame, Lithium ion flame - Crimson red flame, Sodium ion flame - Yellow flame, Calcium ion flame - Orange-red (brick red) flame, Chloride ion - Forms a white precipitate with acidified silver nitrate, Bromide ion - Forms a cream precipitate with acidified silver nitrate, Iodide ion - Forms a yellow precipitate with acidified silver nitrate, Iron (II) ion - Forms a green precipitate with sodium hydroxide, Iron (III) ion - Forms an orange-brown precipitate with sodium hydroxide, Copper (II) ion - Forms a blue precipitate with sodium hydroxide, Calcium ion - Forms a white precipitate with sodium hydroxide that is unchanged if excess is added, Zinc ion - Forms a white precipitate with sodium hydroxide that dissolves if excess sodium hydroxide is added, Sulfate ion - Forms a white precipitate with acidified barium chloride, Carbonate ion - Reacts with a weak acid to make carbon dioxide (turns limewater cloudy),

Testing for ions

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