Chemistry, 17.11.2019 23:31 babygirllll2071

Which atom has a change in oxidation number of -3 in the following redox reaction k2cr2o7 + h2o +s --> koh + cr2o3 +so2

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Which atom has a change in oxidation number of -3 in the following redox reaction k2cr2o7 + h2o +s -...