Calculate the mass in amu of two atoms of aluminum knowing that 1 mol of aluminum weighs 27 g. Give your answer to two significant figures.

Can someone me with questions 15 to 17 plz.

When the water vapor cools it condenses select a number that represents his process on the

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.