Which of the following properties does soap, an emulsifier, have that make it useful for washing dirt off one’s handswith water?
Soap’s dual polar and nonpolar nature helps bond oil and water
Soap’s acidity causes grime to precipitate into the water
Soap’s enzymatic action helps to dissolve grime into small particles
Soap’s rough texture physically scours grime off surfaces
The Correct Answer is A
Soap’s dual polar and nonpolar nature helps bond oil and water. Soap is an emulsifier, which means that it has both polar and nonpolar regions. The polar regions of soap molecules are attracted to water, while the nonpolar regions are attracted to oil and grease. This allows soap to bond with both water and oil, helping to remove dirt and grime from surfaces.
B. Soap’s acidity does not cause grime to precipitate into the water.
C. Soap does not have enzymatic action that helps to dissolve grime into small particles.
D. Soap’s texture does not physically scour grime off surfaces.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Thylakoid: Membrane-bound compartments inside chloroplasts where the light-dependent reactions of photosynthesis occur. Like the mitochondrial inner membrane, it is involved in energy transformation processes
Correct Answer is C
Explanation
The study does not indicate a causal relationship between the processes. A correlation between two processes means that there is a statistical relationship between them, but it does not necessarily imply causation. In other words, just because two processes are correlated does not mean that one causes the other.
A. The study does not indicate that Process A causes Process B.
B. The study can indicate whether Processes A and B have a positive relationship if the correlation is positive.
D. The study can indicate whether Processes A and B have a negative relationship if the correlation is negative.
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