2楼也错1:2OH-+SO3==SO42-+H2O （三氧化硫是固体）2:Cu2+ +S2-==CuS↓ 3:2CH3COOH+CO3 (2-)==2CH3COO- +H2O+CO2↑ 4:Ba2+ +2OH- +Cu2+ +SO4(2-)==BaSO4↓+Cu(OH)2↓5:CH3COO-+NH4++H+==CH3COOH+NH3↑ 6:Br2+2I-==2Br...