Soap can be made by boiling animal fat with lye or potash for several hours.What is the major disadvantage to the lye soap made this way?
A) It did not clean well.
B) It often contained unreacted alkali, which was very harsh on the skin.
C) Glycerol separated out from the soap and remained on the bottom of the kettle.
D) It did not kill bacteria.
Correct Answer:
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Q10: The substance with the formula shown below
Q11: An advantage of potassium soaps is that
Q12: Bathtub ring is caused by
A)the action of
Q13: Sodium carbonate (Na₂CO₃)and potassium carbonate (K₂CO₃)react with
Q14: Washing soda is
A)sodium peroxide.
B)sodium carbonate.
C)sodium borate.
D)sodium chloride.
Q16: Water softeners remove all of the following
Q17: Animal fats and vegetable oil can be
Q18: The molecule shown below is a(n)
Q19: In acidic solutions,soaps are converted to
A)salts.
B)fatty acids.
C)detergents.
D)fats.
Q20: American pioneers combined potash solution and animal
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