CHEM HELP??? 3.10-g mixture of lead nitrate and potassium nitrate are mixed with an excess solution of sodium chloride. There is a precipitate with a mass of 1.10 grams. Calculate the mass percent of the lead nitrate in the solution (remember the amount the lead nitrate solution is given in mass not in L). Show factor label for stoichiometry. First write the net ionic equation.

You just calculated that the heat of fusion for chloromethane is 6400 j/mol. the heat of fusion for hydrogen is 120 j/mol.? which of the following account for this difference? more than one correcta. chloromethane can absorb more energy at the same temperature. b. hydrogen has stronger intermolecular forces than chloromethane. c. hydrogen molecules can pack more closely than chloromethane molecules. d. chloromethane experiences dipole-dipole interactions. e. chloromethane has a higher molar mass than hydrogen.