64.Soap forms scum with following salts
A. MgCl2
B. NaCl
C. NaCO3
D. NaHCO3
Answers
Answered by
5
Answer:
MgCl2
Explanation:
When hard water and soap are mixed, the magnesium ion reacts with soap molecules and forms a solid material called a precipitate, which does not dissolve. This precipitate (soap scum) reduces the ability of the soap to make bubbles.
Answered by
2
Answer: MgCl2
Explanation:
Hard water contains calcium and magnesium ions. When soap comes in contact with hard water, these ions form calcium and magnesium salts of fatty acids which are insoluble in water. These calcium or magnesium salts precipitate out in the form of scum.
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