Question

Write one advantage of soap over detergent. Why does soap form scum in hard water?​

Answer 1

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• They help for sanitation.

Answer 2

Answer:

The basic advantage of soap over detergent is that ,soaps do not form lather with hard water rather they form scum,however detergents work efficiently in both hard water and soft water. scum is the precipitate formmed by soaps when they are treated with hard water,they are calcium and magnesium salts.

Explanation:

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