For the production of no2, kc = [no2]2/[no]2[o2]. at equilibrium in a 2.50 l container, there are 3.00 mol no, 4.00 mol o2 and 22.0 mol no2. the value of kc is

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.

Tin has ten stable isotopes. the heaviest, 124sn, makes up 5.80% of naturally occuring tin atoms. how many atoms of 124sn are present in 82.0 g of naturally occurring tin? what is the total mass of the 124sn atoms in this sample?

Which of these features are formed when hot groundwater is forced out through cracks in the earth's surface?