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yinzhen015

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yinzhen015: ½ð±Ò+3, ¡ï¡ï¡ïºÜÓаïÖú, лл½»Á÷ 2013-08-06 08:54:14
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    Cr2S3 + 6H2O = 2Cr(OH)3(s) + 3H2S(g)
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    2CrO4(2-) + 3S(2-) + 8H2O = 2Cr(OH)3 + 3S + 10OH(-)
      Cr2O7(2-) + 3S(2-) + 14H(+) = 2Cr(3+) + 3S + 7H2O
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