Forms White Precipitate with NaOH, which then dissolves when excess NaOH is added
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Copper (II) Hydroxide
Looks blue
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Iron (II) Hydroxide
Looks green and slowly turns brown
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Iron (III) Hydroxide
Reddish Brown
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Ammonium Ions
React with NaOH to form Ammonia gas, which turns damp red litmus paper blue
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Carbonate Ions
Add dilute HCl, bubble gas through lime water - turns milky
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Halide Ions
Add dilute nitric acid and add silver nitrate solution. Chloride ions give white precipitate, Bromide Ions give a cream precipitate and iodide ions give a yellow precipitate
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Sulfate Ions
Add Dilute HCl and add Barium Chloride solution. White precipitate forms.
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Nitrate Ions
Add Al powder and add NaOH. Gently warm and gas turns damp red litmus paper blue.
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