Question

Which of the following will form scuma. cloth pieces b. greasec. plastic bottles d.metal cans ​

Answer 1

Answer:

Grease is the answer

Explanation:

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Answer 2

Answer:

• The scum is formed by the reaction of soap with calcium and magnesium salts present in hard water. Scum is an insoluble precipitate of calcium and magnesium salts of fatty acids formed by the reaction of soap with hard water.

Explanation:

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