3. Calculate the average atomic mass of the following element. One isotope of this element has an atomic mass of 38.92 amu and a relative abundance of 50.69%. The other
major isotope of the element has an atomic mass of 40.92 amu and a relative abundance
of 49.31%.

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.