Answer:
Have motion that is constant, random, and rapid.
Explanation:
A is correct. This is one of the postulates of the Kinetic Molecular Theory.
B is <em>wrong</em>. The molecules of an ideal gas have a negligible volume.
C is <em>wrong</em>. The molecules of an ideal gas exert no attractive or repulsive forces on each other.
D is <em>wrong</em>. The molecules of an ideal gas are far apart from each other.
ionic compounds
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