Question

determine the oxidation number of carbon in K2CO3​

Answer 1

Answer:

Same answer, different setup. We know that the sum of the oxidation numbers is zero for a compound like potassium carbonate.

Create an algebraic equation by multiplying the subscripts times the oxidation number of a single element.

+2 +x -6 = 0

+1 +x -2

K2 C O3

Solve for x

x = +4

Answer 2

oxidation no ink2CO3 of carbon is

2(1)+x+3(-2)=0

2+x-6=0

x=4