It is possible for different covalent compounds to have the same empirical formula because empirical formulas represent a. a total of all ionic bonds. c. a model of the compound. b. only the cations in the compound. d. a ratio of atoms in the compound.

Calculate the number of molecules present in 0.750 mol of mgo.

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.

One similarity and one difference between an element and a mixture of elements