Question

how is scum formed?​

Answer 1

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. Scum builds up on clothes, baths and sinks. ... The new substance, scum, does not dissolve in water.

Answer 2

━━━━━━━━━━━━━━━━━━━━━━━━━━━

$\text{\large\underline{\orange{Sσłυтıση :-}}}$

How is Scum formed?

Scum is normally formed in hard water as it contains magnesium ions or calcium ions, which on reaction with soap forms calcium stearate or magnesium stearate.

The calcium or magnesium stearate is a white precipitate and commonly known as scum.

The Scumor curdy precipitate) formed by the action of hard water on soap, stticks to the clothes being washed and interferes with the cleaning ability , and makes cleaning difficult.

$\text{\large\underline{\purple{Extra information:-}}}$

What is Scum :-

Scum is basically a stivky white substance which is insoluble in water. It mainly formed due to the reaction of magnesium and calcium ions with the sodium and potaasium salts of carboxylic acids.

when this reaction occurs,an insolube white precipitate is formed which is commonly called as scum.

Scum is defined as a layer of matter or debris on the surface of water or other liquids, or is slang for worthless or undesirable people. A layer of dirt, algae and gunk that forms on top of your backyard pond if it is not clean is an example of scum. Those who steal, cheat and lie are an example of scum.

━━━━━━━━━━━━━━━━━━━━━━━━━━━