Question: can you answer me quickly please 7) What is the oxidation number of chromium in Naz(Cr2O7 )? a) +3 b) +1 c) +7 d) +6

can you answer me quickly please 7) What is the oxidation

can you answer me quickly please

7) What is the oxidation number of chromium in Naz(Cr2O7 )? a) +3 b) +1 c) +7 d) +6 d) +6 e)-2

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