1.

soaps are insoluble in hard water. Why?

Answer»

Hard watercontains calcium and magnesium ions. Whensoaps are dissolved in hard water, these ions displace sodium or potassium from their salts and forminsolublecalcium or magnesium salts of fatty acids.

Theseinsolublesalts separate as scum. This is the reasonwhy soapsdo not work inhard water.



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