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Originally posted by renzhong424 at 2008-4-21 10:48:
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4Â¥2008-04-21 13:48:37
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Cr2O7 (2-) + 2OH- = 2CrO4(2-) + H2O
2CrO4(2-) + 2H+ =Cr2O7 (2-) + H2O

[ Last edited by ramanlxh on 2008-4-20 at 16:24 ]
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