Answer:
[tex]Co_{2} O_{3}[/tex]
Explanation:
Hello!
The chemical compound that is given to us explains important things;
-for starters, the numbers after cobalt show the charge on the cobalt as they could have multiple charges or impossible to infer based on periodic table trends
-Knowing that, we know that the charge of cobalt is 3.
-Looking at the periodic table, we know the charge of oxygen is -2
-the balanced formula has to equal out in negative and positive charges, which means we should have two cobalts and 3 oxygens to cancel out the positive 6 charge on cobalt and -6 charge on oxygen to make 0 overall charge
