Question

Plz Give Me Correct answer its a too argent.....​

Answer 1

Answer:

when a aoap is used in hard water , a solid substance we call scum forms because charged particles present in water react with soap to form in soluble solution .

Answer 2

=> A scum is formed when hard water is treated with soap. It is because a large amount of soap is utilised in reaction with the magnesium and calcium ions of water. An insoluble curdy precipitate,scum,sticks to the clothes making them difficult to be cleaned.

Conclusion:- Due to reaction of mg and ca iond with water.

Hope it helps u kinjal.Explained above..

Thanks..