Balance the following chemical equations.

1. H2 + O2 - 2. + Clz 3. O2 ---> 03 4. Na + H20 - 5. Fe + CuSO4 6. Zn + HCl 7. KC103 8. Sg + F2 9. Fe + O2 --> H20 ---> HCI --> NaOH + H2 --> Cu + FeSO4 ---> ZnCl, + H2 ---> KCl + O2 ---> SF6 ---> Fe203 10. C2H6 + O2 - --> CO2 + H20 11. Balance these three equations using fractional coefficients: S8 + F2 C4H10 + O2 ---> CO2 + H2O S8 + O3 12. H2 + O3 --> H2O (You must balance it with one restriction: the coefficient in front of the water must be a one.) 13. Na + NH33 14. P4 + O2 15. N2 + O2 16. KFeaAISi3010(OH)2 + Cu + O2 + H2S ---> KAIS3O8 + CuFeS2 + H2O 17. SiO, + CaC2 18. NH3(g) + O2(g) 19. MgNH4PO4 ---> Mg2P2O7 + NH3 + H20 20. Balance: PCI5 + H20 ---> SF6 ---> SO2 ---> NANH2 + H2 (balance with a fraction) ---> P2O5 ---> N2OS ---> Si + CaO + CO2 NO2(g) + H2O(g) ---> ---> H3PO4 + HCl using the LCM method.