P + O2 = P2 O5
Fe + Cl2 = FeCl3
Zn + HCl = ZnCl2 + H2
HgO == Hg + O2
Mg + O2 = MgO
Ag2O= Ag+ O2
Al + S= Al2S3
Ca+ HCl= CaCl2 + H2
Al + S = Al2S3
Zn + HCl = ZnCl2 + H2
Au2O3 = Au + O2
P2O5 + H2O = H3PO4

2Fe + 3Cl2 = 2FeCl3Zn + 2HCl = ZnCl2 + H22HgO = 2Hg + O22Mg + O2 = 2MgO2Ag2O= 4Ag+ O22Al + 3S= Al2S3Ca+ 2HCl= CaCl2 + H22Al + 3S = Al2S3Zn + 2HCl = ZnCl2 + H22Au2O3 = 4Au + 3O2P2O5 + 3H2O = 2H3PO44P + 2O5 = 2P2O5