How many moles of nitrogen gas will occupy a volume of .5l at 1.0atm and 298k

Which statements describe polyatomic ions? check all that apply. polyatomic ions have many charges. polyatomic ions have one overall charge. polyatomic ions repel other ions to form ionic bonds. polyatomic ions attract other ions to form ionic bonds. polyatomic ions are made up of only one type of atom. polyatomic ions are made up of two or more types of atoms.

Agas has a volume of 0.7 l at 300 mmhg. what would be the new volume at 900 mmhg

What is the correct lewis structure for chloroform chcl3