A 60 grams sample of a compound, contained 38.43 grams of Lead, 17.83 grams of Carbon, and 3.74 grams of Hydrogen. Based off the information the empirical formula would be?

How many moles of air are there in a human lung with a volume of 2.4 l at stp? explain your answer

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.

Name the element in group 17, period 2. (periodic table)