Question

Explain the formation of scum when hard water is treated with soap

Answer 1

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. ... The new substance, scum, does not dissolve inwater.

Answer 2

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☺ Hello mate__ ❤

◾◾here is your answer.

✒Soap does not much useful when the water is hard.

✒Scum formation:--

1) A soap contain sodium or potassium salt of long chain fatty acids. Hard water contains salts of calcium and magnesium.

2)When soap is mix with hard water, calcium and magnesium ions present in water replace by sodium or potassium ions from the soap molecules forming an insoluble substance called scum.

✒ A lot of soap is wasted in the process.

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I hope, this will help you.☺

Thank you______❤

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