a) NaOH + HNO3→NaNO3+H2O azotan(V)sodu
Na+ +OH- +H+ +NO3- --->Na+ +NO3- +H2O
OH- +H+ --->H2O
b) Mg + 2HCl →MgCl2+H2 chlorek magnezu
c) K2O + SO2→K2SO3 siarczan(IV)potasu
d) 2Al + 3Br2→2AlBr3 bromek glinu
e) Li2O + H2SO4→Li2SO4+H2O siarczan(VI)litu
f) Na2SO4+Ca(NO3)2→CaSO4↓+2NaNO3 siarczan(VI)wapnia, azotan(V)sodu