Answer:
8.74kj
Explanation:
There are three steps
Warming up the ice to its melitng point. THe nergy required to melt it completely. The energy requiered to warm up the water to a certain temp.
It can be seen by the three equations written
Chemical Change
Physical change normally mean that the change can revert back to its orginal state, which in this case that is not possible therfore it is a chemical change.
The answer to the question is 300meters.