Cho 70,5gam hỗn hợp CuO và Na2O tác dụng vừa đủ với 13,5g nước. a) TÍnh phần trăm khối lượng mỗi oxit trong hỗn hợp
b)Tính m dung dịch H2SO4 19,6% hoà tam hết oxit ban đầu

Will give ! what are the advantages and disadvantages of nuclear power? check all that apply. one advantage of nuclear energy is that it does not produce carbon dioxide emissions. storage of nuclear waste is a short-term problem associated with nuclear energy. the problem with uranium mining is that a large quantity of uranium must be extracted to meet energy needs because the energy release from uranium fission is so low. safe operation of a nuclear power plant can be jeopardized by a human mistake.

Calculate the energy required to ionize a hydrogen atom to an excited state where the electron is initially in the n = 5 energy level. report your answer in kilojoules

Find the number of moles of argon in 364g of argon.