This reaction can be used to eliminate bacteria and e-coli from drinking water. what mas of iron(iii) oxide (fe203) and aluminum must be used to produce 15.0 g iron(fe)? what is the maximum mass of aluminum oxide that could be produced? (40)

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.

Compare the valence electron configuration of the nobles gas elements seen here. what statement is correct?

All cells are made of four types of acids, lipids, proteins, and carbohydrates.