What is the mass of 1.72 moles of sodium nitrate? Use the periodic table and the polyatomic ion resource.

Newtons second law deals most cosely with

What are the first three quantum numbers for the electrons located in subshell 2s?

8) a mixture of he, ne and ar has a pressure of 7.85 atm. if the ne has a mole fraction of 0.47 and 8) ar has a mole fraction of 0.23, what is the pressure of he? a) 4.2 atm b) 3.7 atm c) 5.5 atm d) 2.4 atm e) 1.8 atm