Alright... this question is on my homework for my accelerated physics class. I have a test tomorrow and I'm lost on how to do it so Here is the question: A very small sample of fuel for a nuclear fission reactor contains .012 kg of Uranium-235. Suppose that each fission event from this fuel produces Barium-141 and Krypton-92, along with 3 additional neutrons. The nuclear reactor is then able to provide power to homes, which uses an average of 7.2x10^9 J of energy every month. a) Determine the number of fission events possible from this fuel sample. b)How long could the Uranium-235 fuel sample provide power for the average home? Uranium-235 = 235.0439 u Barium-141 = 140.9144 u Krypton-92 = 91.92515 u Here are some conversion factors: 1 u = 1.66x10^-27 kg I'm not exactly sure what equation to use and how to use it. Here is the equation E = mc^2 This will sound weird but I already know the answers.. Our teacher gives us the answers but she only takes points for the work and plus I need to know how to do it for the test. Here are the answers: a)3.08x10^22 b)119 months I would really appreciate it if you could help me out and give me pretty good detail so I can figure it out. Thanks!