Why do soaps not work in hard water ?

Why soaps do not work in hard water ?

Why soaps do not work in hard water?

Why soaps are not used in hard water?

Both soap and detergent are same type of salts. What is the difference between them ? Describe in brief the cleansing action of soap. Why do soaps not form lather in hard water?

Soaps do not work in hard water containing calcium and magnesium ions because

Soaps do not work in hard water containing calcium and magnesium ions because