MgBa+NH4OH.
HCl+K2CO3
BaO+P2O5
KOH+(NH4)2S
M2O3+H2SO4

NaOH+HCl->NaCl+H20H2SO4+2 RbOH->RbSO4 + 2 H20Cu(OH)2+2 HBr->CuBr2 + 2 H2OH2SO4+2 NH4OH->(NH4)2SO4 + 2 H2OHClO4+NaOH->NaClO4+H2O2 KOH+H2S-> K2S + 2H2O3 Sr(OH)2+P2O5->Sr3(PO4)2+ 3 H2OCO2+2 NaOH->Na2CO3 +H2OFe2O3+3 H2SO4->Fe2(SO4)3+ 3 H202 HCl+BaO->BaCl2+H2OCaO+H2SO4->CaSO4+H2OCaO+Cu(OH)2-> CuO+Ca(OH)2