下列离子方程式书写正确的是()。

A . ['用碳酸钠溶液吸收少量二氧化硫:2COhttps://assets.asklib.com/psource/2016030311054676670.jpg +S2O+H2Ohttps://assets.asklib.com/psource/2016030311072635109.jpg 2HCOhttps://assets.asklib.com/psource/2016030311054738505.jpg +SOhttps://assets.asklib.com/psource/2016030311054676670.jpg B . 铁作电极电解饱和食盐水:2Cl+2H2Ohttps://assets.asklib.com/psource/2016030311072635109.jpg 2OH+H2↑+Cl↑C . 向Ba(OH)2溶液中逐滴加入NH4HSO4溶液至刚好沉淀完全:Ba2++OH-+H++SOhttps://assets.asklib.com/psource/2016030311072562733.jpg https://assets.asklib.com/psource/2016030311072635109.jpg BaSO4↓+H2OD . Fe2O3溶于HI溶液中:Fe2O3+6H+https://assets.asklib.com/psource/2016030311072635109.jpg 2Fe3++3H2O

时间:2022-09-26 04:07:37 所属题库:医疗器械经营企业从业人员上岗资格考试题库

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