Water with potassium (K):2K + 2H2O -> 2KOH + H2
Water with CuO (copper(II) oxide):CuO + H2O -> Cu(OH)2
Water with N2O3 (dinitrogen trioxide):N2O3 + H2O -> 2HNO2
Water with CaO (calcium oxide):CaO + H2O -> Ca(OH)2
Water with iron (Fe):3Fe + 4H2O -> Fe3O4 + 4H2
Water with potassium (K):
2K + 2H2O -> 2KOH + H2
Water with CuO (copper(II) oxide):
CuO + H2O -> Cu(OH)2
Water with N2O3 (dinitrogen trioxide):
N2O3 + H2O -> 2HNO2
Water with CaO (calcium oxide):
CaO + H2O -> Ca(OH)2
Water with iron (Fe):
3Fe + 4H2O -> Fe3O4 + 4H2