I2O2...........I2 + O2---->I2O2
MgO...........2Mg + O2---->2MgO
Mn(OH)2.....MnCl2 + 2KOH---->Mn(OH)2 + 2KCl
KOH...........K2O + H2O---->2KOH
HNO2.........N2O3 + H2O---->2HNO2
Na2CO3.......Na2O + CO2---->Na2CO3
CaSO4.........CaO + SO3---->CaSO4
AgNO3........Ag2O + 2HNO3---->2AgNO3 + H2O