Therefore, to balancing charges of partial equations, this equation multiplies by 5 and then adding with the first equation. This equation balancing with respect to charges and reacting elements. The partial equation representing the oxidation of the reductant, Fe +2 ⇆ Fe +3 + e. The above partial equation is still unbalanced from the viewpoint of charges and the equation balancing by bringing in five electrons. This reaction occurs in an acid solution, thus we use hydrogen ion to balance the four oxygen atoms in permanganate ion. The partial equation representing the reduction of the oxidant, MnO 4 – → Mn +2. The left-hand side of the ultimate equation will carry, MnO 4 –, H + ion, and Fe +2 ion, and the right-hand side will have Mn +2, water, and Fe +3. Permanganate ion is the oxidant and the ferrous ion is the reductant in balancing chemical equations. Potassium permanganate in dilute sulfuric acid oxidizes iron from the ferrous state to the ferric state by changing the electronic configuration of the iron atom.