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Question

K + H2O --->

Na2O + H2O--->

Ca + H2O--->

Fe2O3 + H2O--->

CuO + HNO3--->

Na2O + H2O--->

CO2 + CaO--->

NH3 + HBr--->

CaO + CO2--->

MgO + SO3--->

FeO + N2O5--->

CuO + P2O5--->

Ag2O + N2O3--->

Na + H2SO4--->

Mg + HCl--->

CaCO3 + HCl--->

Answer 1

K+H2O -> KOH+H2

Na2O+ H2O-> 2NaOH

Са + 2H2O = Ca(OH)2 + H2

Fe2O3+3H2O<==>2Fe(OH)3

CuO + 2HNO3 = Cu(NO3)2 + H2O

Na2O+ H2O-> 2NaOH

HBr + NH3 ------> NH4Br