Al+o2 ca+h2o na+hoh znn+h2o so2+h2o mgo+h2o
4AL + 3O2 =2 Al2O3
Ca + 2H2O = Ca(OH)2 + H2
2Na + 2H2O = 2NaOH + H2
Zn + H2O = ZnO + H2
SO2 + H2O = H2SO3
MgO + H2O = Mg(OH)2