Science, asked by ahildassp, 3 months ago

Scum otherwise called _ material.

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Answered by SweetImposter

When a soap is used in hard water, a solid substance we call scum forms. This is because charged calcium and magnesium particles (called ions ) present in the water react with soap to form an insoluble substance.Scum builds up on clothes, baths and sinks. Detergents do not form scum.

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