The combustion of propane may be described by the chemical equation,
c3h8(g) + 5o2(g) --> 3co2(g) + 4h2o(g)
how many grams of o2(g) are needed to completely burn 40.4 g of c3h8(g)?

Idon’t know how to solve this question

Significant figures are digits read directly from the measuring instrument plus one more digit, which is __ by the observer.

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.