A 16.0 g piece of metal at 293 oC is dropped into 89 g H2O a…

A 16.0 g piece of metal at 293 oC is dropped into 89 g H2O at 18.4 oC. The final temperature is 22.1 oC. C(water)=4.18 J/(g*oC). Use the table below to identify the metal.  Heat Capacities of Selected Metals Metal C (J/(g*K)) Antimony 0.50 Barium 0.20 Cobalt 0.42 Germanium 0.32

The surroundings does 37 J of work on the system. The system…

The surroundings does 37 J of work on the system. The system receives 23 J of work from the surroundings. The system emits 81 J heat. What is the change in internal energy of the system? Exact sig figs required. Answer in J. Do not use scientific notation. Do not type units.