# Chemistry Examples

Since K is in column of the periodic table, it will share electrons and use an oxidation state of .

Since O is in column of the periodic table, it will share electrons and use an oxidation state of .

To find the oxidation state of , set up an equation of each oxidation state found earlier and set it equal to .

Simplify the left side.

Multiply by to get .

Subtract from to get .

Since does not contain the variable to solve for, move it to the right side of the equation by adding to both sides.

is using an oxidation state of .

This is the full list of oxidation states for this molecule.