HCl + NaOH -> NaCl+ H2O
A + B -> C
A -> B + C
AB + C -> AC + B
MgI2 + Be -> BeI2 + Mg
KBr + H2O -> KOH + HBr
H2O -> H2 + O2
C + O2 -> CO2
HA + BOH -> BA + H2O
BA + H2O -> BOH + AH
