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Aarush dutta
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Asked: 2021-09-21T05:45:56+00:00 In:

Explain why soap does not give lather with hard water easily.

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      Hard water contains calcium ions and magnesium ions. Soap does not give lather with hard water easily because it reacts with the calcium and magnesium ions present in hard water to form insoluble calcium and magnesium salts.

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