P2O5 + H2O = H3PO4Fe(OH)3 = Fe2O3 + H2OK2CO3 = KCl + O2Al + S = Al2S3Zn + HCl = ZnCl2 + H2Cu(HCO3)2 = CuO + CO2 + H2OHgO = Hg + O2CaCO3 + HNO3 = Ca(NO3)2 + H2CO3
P2O5 + H2O = H3PO4
Fe(OH)3 = Fe2O3 + H2O
K2CO3 = KCl + O2
Al + S = Al2S3
Zn + HCl = ZnCl2 + H2
Cu(HCO3)2 = CuO + CO2 + H2O
HgO = Hg + O2
CaCO3 + HNO3 = Ca(NO3)2 + H2CO3