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m0378: ½ð±Ò+1, лл²ÎÓë 2013-12-24 08:34:56
3MnO2 (¸ßÎÂ) = Mn3O4 + O2

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   MnO2 + C = Mn + CO/CO2
    mMn + nC = Mn(m)C(n)
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