A student mixes two clear, colorless liquids in a beaker. They observe the formation of a white solid and notice the beaker feels warm to the touch. Which statement best explains these observations?
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A
A physical change occurred, causing one liquid to freeze.
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B
The liquids were contaminated, resulting in a precipitate.
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C
A chemical reaction occurred, indicated by the formation of a precipitate and a change in temperature.
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D
The beaker absorbed heat from the room, causing a solid to form.