Complete and balance the following equations:

1. Na (s) + H2O (l) NaOH (aq) + H2 (g)

2. Fe (s) + O2 (g) Fe2O3 (s)

3. C3H8 (g) + O2 (g) CO2 (g) + H2O (l)

4. P (s) + Cl2 (g) PCl5 (g)

5. NaBr (aq) + Cl2 (g) NaCl (aq) + Br2 (g)

6. Zn (s) + HCl (aq) ZnCl2 (aq) + H2 (g)

7. S8 (g) + O2 (g) SO2 (g)

8. AgCl (aq) + Cu (s) Ag (s) + CuCl2 (aq)

9. Ag2S (aq) + Al (s) + H2O (l) Ag (s) + Al(OH)3 (aq) + H2S (g)

10. C (s) + O2 (g) CO (g)