What changes occur at the molecular level when ice cream melts and forms a liquid?

A.
The motion of the molecules remains the same.
B.
The motion of the molecules increases.
C.
The motion of the molecules decreases.
D.
The motion of the molecules stops completely.
E.
The motion of the molecules shows a fixed pattern.

1 answer

When ice cream melts and transitions from a solid to a liquid state, the molecules in the ice cream gain energy and begin moving more freely. This results in increased molecular motion.

Therefore, the correct answer is:

B. The motion of the molecules increases.