Celestial object A is composed of 92.1 percent hydrogen and 7.8 percent helium while celestial object B is made up of ice, frozen carbon dioxide, rock, and dust. What is celestial object A? A. asteroid B. comet C. dwarf planet D. black hole E. star

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.