Problem 1: Mass to Mass How many grams of SnF2 are produced from the reaction of 72 g of HF with Sn?
Sn + 2HF → SnF2 + H2
72 g g ?

Problem 2: Moles to Mass

How many grams of LiCl can be produced from 22 moles of CaCl2?
Li2SO4 + CaCl2 → 2LiCl + CaSO4

What changes occur in the reaction indicated by the equation? check all that apply. the hydrogen nucleus loses protons. the oxygen nucleus gains protons. the bond in h2 is broken, and new bonds are formed between hydrogen and oxygen atoms. each electron associated with a hydrogen atom is shared with an oxygen atom.