13
QuizMultiple Choice

Energy in Chemical Reactions — Test

Question 13 • Chemistry

Which is the most important factor in determining the state of a substance?

Answer
A
the position of the electrons on the outer valence shells
B
the balance between intermolecular forces and kinetic energy
C
the size of the atoms in a substance
D
the number of molecules in a substance

Explanation

A substance’s state depends mainly on the balance between the attractions among its particles and their kinetic energy. Stronger intermolecular forces tend to hold particles close together, while greater kinetic energy helps them move more freely. Therefore, the correct choice is “the balance between intermolecular forces and kinetic energy.”

AI-written and checked against the verified answer.

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