用湿润的醋酸铅试纸检验硫化氢气体的离子方程式
匿名用户 2010-02-01 14:54
满意回答
全是瞎说 Pb(CH3COO)2+H2S=PbS沉淀+2CH3COOH 醋酸铅难以电离
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其他回答
2CH3COO- + Pb2+ +H2S = 2CH3COOH + PbS(沉淀符号)
Pb2+ + 2CH3COO- + H2S = PbS↓ + 2CH3COOH H2S,CH3COOH均为弱电解质,
全是瞎说 Pb(CH3COO)2+H2S=PbS沉淀+2CH3COOH 醋酸铅难以电离
2CH3COO- + Pb2+ +H2S = 2CH3COOH + PbS(沉淀符号)
Pb2+ + 2CH3COO- + H2S = PbS↓ + 2CH3COOH H2S,CH3COOH均为弱电解质,