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12.能正确表示下列反应的离子方程式为(A). 硫化亚铁溶于稀硝酸中:FeS+2H+=Fe2++H2S(B). NH4HCO3溶于过量的NaOH溶液中:HCO3-+OH-=CO32-+H2O(C).
問題詳情
12.能正确表示下列反应的离子方程式为
(A). 硫化亚铁溶于稀硝酸中:FeS+2H+=Fe2++H2S
(B). NH4HCO3溶于过量的NaOH溶液中:HCO3-+OH-=CO32-+H2O
(C). 少量SO2通入苯酚钠溶液中:C6H5O-+SO2+H2O=C6H5OH+HSO3-
(D). 大理石溶于醋酸中:CaCO3+2CH3COOH=Ca2++2CH3COO-+CO2 +H2O
參考答案
答案:D
難度:適中0.5
統計:A(0),B(0),C(0),D(0),E(0)
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