complete and balance these chemistry equations please?

[ZAP Skim girl]

Al + Br2
Ca +O2
K + S
Ba + N2
Na +Cl2
CH4 + O2
Al + O2
C3H8 +O2
K + O2
HgO
NH3
C4H10 + O2
C6H12O6 + O2
H2 + O2
H2 +Se
Al + S
H2O
Zr + F2

thanks! any help is appreciated