Hi PF! I just took a test for my class and there is one problem I can't get my mind off of. I'm not necessarily looking for the correct solution here, just if my thinking was correct. It went more or less like this: there is 40g of ice at 0 degrees C in 200g of water in an aluminum calorimeter. Both water and calorimeter are at 0C. There is also a bit of copper at 98C. The system's final temp is 2 C. Was I right to include a phase change of ice to water to rise to 2C? I also included the change in heat using the specific heat of water and another step including the specific heat of ice? Did I include too much/over think this? Thanks!