The crushing realization that liquids don't always add up like your high school math teacher promised. When water and ethanol mix, their molecules get all cozy and compact, creating a volume less than the sum of their parts. It's called volume contraction, and it's the first clue that chemistry is just physics with commitment issues. The look of existential dread says it all—welcome to college, where even basic addition betrays you.
When Math Fails Chemistry Class

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