Test for Negative Ions

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To test for Carbonate Ions:

Add: Dilute Hydrochloric Acid

If carbonate ions are present: If it fizzes and there is gas produced, bubble it through water and it turns the limewater milky.

To test for Halide (Chloride, Bromide or Iodide) Ions: 

Add: Dilute Nitric Acid & Silver Nitrate Solution

( Precipitation reactions


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