(iii) Give an equation for the removal of permanent hardness in water.
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Answered by
15
Explanation:
Sodium carbonate is it's name
it is it's formulaNA2CO3.10 H20
- washing soda is it's chemical name
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7
Permanent hardness present in the water can be removed by treating it with soda water and using permutit process. Soluble salts of calcium and magnesium change into insoluble salts due to the treatment with sodium carbonate (washing soda).
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