Question

find out oxidation number of chromium in K2CR2O7 molecule​

Answer 1

Answer:

off my is wet fckkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkhjkk

Answer 2

Answer:

+6

Explanation:

let's oxidation state of Cr = y

we know K has +1 and O has -2

=> 2 × (+1) + 2 × y + 7 × (-2) = 0

=> 2 + 2y -14 = 0

=> 2y = +12

=> y = +6

So oxidation state of Cr is +6

Thank you!