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If water contains dissolved calcium hydr...

If water contains dissolved calcium hydrogencarbonate, out of soaps and synthetic detergents which one will you use for cleaning clothes ?

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Calcium bicarbonate makes water hard. Soap will give precipitate with this hard water and therefore , can not be used for cleaning clothes. On the other hand , a synthetic detergent does not give precipitate in har water because its calcium salt is also soluble in water . Therefore , synthetic detergent can be used for cleaning clothes in hard water .
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If water contains dissolved Ca^(2+) ions, out of soaps and synthetic detergents, which will you use for cleaning clothes ?

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