"Like Dissolves Like" as a Structural Heuristic
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State
"Like dissolves like" is a heuristic, not a strict law: polar solvents favor polar solutes, nonpolar solvents favor nonpolar ones.
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Oil and water stay separate because water's hydrogen bonds outcompete any attraction either liquid could form with the other.
Watch for
This heuristic predicts trends, not certainties — some polar and nonpolar pairs dissolve partially instead.
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- Nothing yet depends on this.