Question

1. which change of state is not the result of thermal energy being removed from a pure substance?

deposition

melting

freezing

condensation

Explanation:

Deposition, freezing, and condensation involve removing thermal energy (cooling) to change state (gas→solid, liquid→solid, gas→liquid). Melting is solid→liquid, requiring thermal energy (heating), not removal.

Answer:

melting (the option labeled "melting")