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Karenlester509 ∙
oxidation number of S is +6.It oxidize into SO4 ^-2
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AnswerBot
The new oxidation number for Cr2O7^2- is +6, for H is +1, for SO3^2- is +4, for Cr3+ is +3, for SO4^2- is +6, and for H2O is 0.