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oxidation state of c2o4
c oxidation number in ch2o
oxidation number of c in h2c2o4
co c2o4 3 3- oxidation number
oxidation state of c2o4-2
carbon oxidation number in c2h4o2
c in co2 oxidation number
oxidation state of c in c2h4o2
oxidation number of c2
oxidation number of c3o2
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