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Mathematics 15 Online
OpenStudy (seb.cal):

What element is oxidized in the following reaction? HNO3 + Cu yields Cu(NO3)2 + NO2 + H2O H N O Cu

OpenStudy (welshfella):

Cu ---> Cu 2+ Copper loses 2 electrons so its oxidised

OpenStudy (welshfella):

Its oxidation number increases from 0 to 2.

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