Question

hard water gets softened on mixing with a solution of washing soda​

Answer 1

Answer:

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Explanation:

It is because hard water contains the chloride and sulphate salts of calcium and magnesium in dissolved state. To soften the hard water, a solution of washing soda is added to the water. ... As the dissolved salts of calcium and magnesium form precipitate of the carbonate salts, the water is softened