While eating a peanut butter and jelly sandwich, peanut butter drips on Diana’s shirt. She tries to remove the peanut butter from her shirt by rubbing the spot with water, but it doesn’t work. What is the best explanation for why the water does not remove the peanut butter?
Answer
A
The water and peanut butter have different chemical properties.
B
The water and peanut butter have different temperatures.
C
The water and peanut butter have different pressures.
Explanation
Water is polar, while much of the oil in peanut butter is nonpolar. Because substances with different chemical properties do not mix well, water cannot dissolve and remove the peanut butter effectively. Different temperatures or pressures are not the reason in this situation.
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