Do not worry that you find these problems difficult; many students consider them to be the toughest problems in the course. In general, you just have to keep thinking about where the energy comes from and where it goes. For example, if a hot object is dropped in a calorimeter, it will cool down. Thus, it loses energy...
You need to think through what the problem is telling you. Remember, you have three heats: qcalorimeter qwater qmetal Each one of these q’s is determined by the equation q = (m) x (c) x (deltaT) When you are given the mass of the calorimeter, that’s the “m” in the equation for qcalorimeter. When you are give...