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22 December, 01:22

Which element is reduced in this reaction? cr2o72-+3hno2+5h+→2cr3++3no3-+4h2o enter the chemical symbol of the element?

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  1. 22 December, 01:39
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    A reducing agent loses electrons, so on the left side of the equation N in HNO2 has an oxidation number of + 3 and on the right side in NO3^ - it has an oxidation number of + 5, so it has lost electrons. Thus, the reducing agent would be HNO2.
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