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- nijiuzaiwo 2012-08-02 00:00:00
- 寫的很詳細(xì)了！不懂再問 FeS中S為-2 H2SO4中S為+6 SO2中S為+4由于Fe2(SO4)3中有兩個Fe原子，據(jù)原子守恒先在FeS前配上2，F(xiàn)eS中鐵元素為
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- 文月丸子 2012-08-02 00:00:00
- 二者不反應(yīng) 因?yàn)槎卟荒芡ㄟ^得失電子發(fā)生 氧化還原反應(yīng) 也不能生成水 或者 氣體 或者沉淀而發(fā)生 復(fù)分解反應(yīng) 不明白HI
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- 友轉(zhuǎn) 2018-05-09 16:48:54
- 氧化還原反應(yīng)，三價鐵氧化二氧化硫 離子方程式SO2+2Fe3++2H2O=SO4 2- +2Fe2+ +4H+ (由S +4-->+6，失2個電子；Fe+3-->+2，得1個電子，故SO2和SO4 2-配1，F(xiàn)e3+和Fe2+配2 再由電荷守恒或物質(zhì)守恒配平H2O和H+) 寫成化學(xué)方程式，SO2+Fe2(SO4)3+2H2O=2H2SO4 +2FeSO4
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