Asample of he gas (3.0 l) at 5.6 atm and 25°c was combined with 4.5 l of ne gas at 3.6 atm and 25°c at constant temperature in a 9.0 l flask. the total pressure in the flask was atm. assume the initial pressure in the flask was 0.00 atm.

How many neutrons does a atom of cobalt have?

What effect would average population growth have on land usage? a. urban use of land would rise to more than 30 percent of available land. b. industrial use of land would rise to more than 30 percent of available land. c. the percentage of available land used as cropland would stay the same. d. cropland would fall to about 10 percent of available land.

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.