Question

which changes melting of ice into water

Answer 1

the heat present in the ice when we freez it !

Answer 2

hey... here is ur answer.
A block of ice is solid water. When heat (a form of energy) is added, theice melts into liquid water. It has reached its melting point – 0°C. Continue to apply heat, and the waterwill turn into water vapour, which iswater in its gaseous state.