bigbrainleah2648 bigbrainleah2648

05-05-2018
Chemistry

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What is the oxidation number of the chromium atom in k2cro4? what is the oxidation number of the chromium atom in ? +2 +6 -3 -7 +4?

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mkryukova19 mkryukova19

13-05-2018

(K⁺¹)2Cr(O⁻²)4

+1*2 +x-2*4=0
2+x-8=0
x=6
Oxidation number of Cr is +6.

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