Chemistry, asked by 45782282, 20 days ago

Why is Scum formed when hard water is treated with soap solution ?

Answers

Answered by nitashreetalukdar

3

Answer:

When soap is dissolved in hard water, it reacts with the calcium and magnesium ions that are present there and form calcium and magnesium salt of fatty acids. These salts are not miscible in water at all and form a white layer on the surface of the water called scum.

Answered by Anonymous

21

Explanation:

the scum is due to the formation of grey and white insoluble calcium and magnesium compound formed by a reaction between the soap molecules and calcium and magnesium ions...

hope it's helps you...

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