题目：
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. 少量SO2通入到Ba(NO3)2溶液中，正确的离子反应方程式为：3SO2＋2NO3-＋3Ba2+＋2H2O＝3BaSO4↓＋2NO↑＋4H+
答案：
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