If 115grams of a substance reacts with 84grams of another substance, what will be the mass of the products after the reaction?

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.

What is the ima of the 1 st class lever in the graphic given? 2 3 0.5

When you mate two plants together the terms is called? answer it fast as possible plz! i have a test tomorrow!