Which compound is missing in the reaction given below?2NaOH+(NH4)2SO4→?+Na2SO4+2H2O
What type of reactions are represented by the following equations
(a) CaO+CO2⟶CaCO3
(b) 2Na+2H2O⟶2NaOH+H2
(c) Mg+CuSO4⟶MgSO4+Cu
(d) NH4NO2⟶N2+2H2O
(e) CuSO4+2NaOH⟶Cu(OH)2+Na2SO4