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molecules go with the concentration gradient, depending if the cell is hypotonic or hypertonic (research that.)

AnswerBecause the molecules of solute are mutually repelled but are attracted to the molecules of the solvent. They therefore tend to spread throughout the solvent until they are evenly distributed.Actual Answer

Molecules diffuse because they are always randomly moving around (brownian motion). The molecules have no real sense of high or low concentration. It's their random movement that make it seem like they go from high to low concentration.

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13y ago

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