1. The problem statement, all variables and given/known data How much heat is required to convert 200 g of ice at -9°C to water at 9°C? 2. Relevant equations I tried the equation Q= cmT. So I took 200 g x 1 cal/gram x 18 degrees. This was incorrect though. 3. The attempt at a solution Attempt shown above. Any help would be nice! My textbook is very light on equations and such so I really don't know where to begin..