A sample of water was tested for its hardness and it contained bicarbonate ions. This hard water was treated with compound A, which resulted in the formation of precipitate containing carbonate ions. 1. The bicarbonate ions of which metals must be present in the hard water? [01 Mar 2. Identify compound A and answer whether the water is temporary hard or permanent hard. [01 Mar 3. Draw a labelled diagram representing the process described. [01 Mar 4. Write two equations representing the conversion of bicarbonate ions to carbonate ions. [02 Marl
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