Multiple Choice
Formaldehyde in solution is used as a preservative. It has a melting point of -92°C. When the temperature of a sample of formaldehyde rises from -93°C to -91°C, which of the following occurs?
A) The molecules move more freely.
B) The molecules lose electrical charge.
C) The molecules break apart into atoms.
D) The molecules become fixed in a crystal structure.
Correct Answer:
Verified
Correct Answer:
Verified
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