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What is the oxidation number of o in na2so4?
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What is the oxidation number of o in na2so4?

User Wiretext
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The oxidation number for the S atom in Na2SO4 is +6. Bc sodium has a charge of +1 and there are 2 sodiums, the positive part of the compound has a +2 charge. So to make a neutral compound, the charge on the sulfate poly ion is -2. Hope that helps.
User Yacine Filali
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