Ions form when atoms gain or lose valence electrons to achieve an outermost energy level (or shell) that is isoelectronic with the nearest noble gas. true false

1) these are barrel shaped microtubules in most animal cells, that organize the spindles during cell division

Areaction in which products can react to re-form reactants is

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.