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

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Answer 1

hey here is your answer


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 in water.



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Answer 2

hey mate ,
here is your answer
soap does not work properly when the water is hard. a soap is a sodium or potassium of long chain fatty acids.
hard water contains salt of calcium and magnesium. when soap is added to hard water , calcium and magnesium ions present in water displace 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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