Asample of air is composed of nitrogen, oxygen, and argon gases. if the partial pressure of nitrogen is 587 mm hg, oxygen is 158 mm hg, and argon is 7 mm hg, what is the total pressure? 1512 mm hg 8 mm hg 100 mm hg 422 mm hg 752 mm hg

Adilute aqueous potassium nitrate solution is

The molality of calcium chloride (cacl2) in an aqueous solution is 2.46 m. what is mole fraction of the solute?

Which statement explains why the bonds between non metals tend to be covalent? the bonds are found to be nondirectional they have large differences in electronegativity they have small differences in electronegativity they have ions that produce an electrostatic pull