1. Balancing Equations H 2 + Cl 2 → HCl

2. Balancing Equations KI + Br 2 → KBr + I 2

3. Balancing Equations CH 4 + O 2 → CO 2 + H 2 O

4. Balancing Equations V 2 O 5 + Ca → V + CaO

5. Balancing Equations NaCl + F 2 → NaF + Cl 2

6. Using Mole Ratios In the reaction, 2H 2 O → 2H 2 + O 2, if you start with 2 mol of water, how many moles of hydrogen gas are produced?

7. Using Mole Ratios If you start with 5 mol of O 2 in the reaction, 2Mg + O 2 → 2MgO, how many moles of Mg will you need?

8. Using Mole Ratios In the reaction, H 2 S + 2O 2 → H 2 SO 4, the law of definite proportions predicts that for every mole of H 2 S you will need how many moles of O 2 ?