Question

Robert leaves a chocolate bar in his car while attending school all day. When he goes to his car in the afternoon, the bar has changed into a gooey liquid. Which statement BEST explains what happened to Robert's chocolate bar?

Answer 1

substance change.

solid to a liquid

melting state when heat was applied.

Step-by-step explanation:

Answer 2

substance change.
solid to a liquid
melting state when heat was applied.