Which describes the current model of the atom? (2 points) a. it can be used to predict atomic behavior in most circumstances. b. it has been perfected and will never be changed in the future. c. it is only accepted by a small fraction of scientists. d. it is only useful in very specific circumstances.

How many miles of water are produced if 5.43 mol pbo2 are consumed

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.

Reactions in cells take place at about a. 40°c b. 0° c. 100°c d. 60°c