What is an example of a compound structure

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.

How many moles of carbon dioxide will form if 2.5 moles of c3h8 is burned

What is the lowest number energy level where a d sublevel is found