Question

1. in which state of matter are molecules moving the fastest? a) gas b) liquid c) solid

Explanation:

In gases, molecules have the most kinetic energy and are free to move around with high - speed motion. In liquids, they are more closely packed and move more slowly than in gases. In solids, molecules are in fixed positions and only vibrate around their equilibrium positions, having the least mobility compared to the other two states.

Answer:

a) Gas