A 42.0 g sample of copper at 99.8 C is carefully placed into an insulated container containing 189 g of water at 18.5 C. Calculate the final temperature when thermal equilibrium is reached Assume there is no energy transferred to or from the container Specific heat capacities: Cu = 0.385). H20 = 4.18491ec1 16.8 x C Resubmit Show Approach Hide Tutor Steps