A:NH4HCO3溶液与过量NaOH溶液反应 NH4+ +OH- =NH3↑+ H2O
B:过量CO2通入Ca(ClO)2溶液中 ClO-+CO2+H2O = HCO3-+HClO
C:向Na2CO3溶液中加入过量CH3COOH溶液 CO32-+2H+= CO2↑+H2O
D:向Ba(OH)2溶液中加入少量NaHSO3溶液 2HSO3-+Ba2++2OH-= BaSO3↓+SO32-+2H2O
—I agree. Trees are getting now.