Question

Which statement describes how a substance melts?(1 point)
Responses

Molecules in the substance gain kinetic energy and then become less tightly bound to each other.
Molecules in the substance gain kinetic energy and then become less tightly bound to each other.

Molecules in the substance lose kinetic energy and then become less tightly bound to each other.
Molecules in the substance lose kinetic energy and then become less tightly bound to each other.

Molecules in the substance lose kinetic energy and then become more tightly bound to each other.
Molecules in the substance lose kinetic energy and then become more tightly bound to each other.

Molecules in the substance gain kinetic energy and then become more tightly bound to each other.

Answer 1

Molecules in the substance gain kinetic energy and then become less tightly bound to each other.

Reason: Melting requires adding heat, which increases molecular motion so particles overcome some attractive forces and move more freely, changing from a rigid solid to a fluid liquid.