Question 821
What is the main reason for the difference in color between MnO₄⁻ (purple) and MnO₄²⁻ (green)?
Question 822
What is the main product formed at the cathode during the electrolysis of an aqueous solution containing Mn²⁺ ions?
Question 823
What is the main product formed at the anode during the electrolysis of an aqueous solution containing Mn²⁺ ions using inert electrodes?
Question 824
What happens to the oxidation state of manganese in the half-reaction MnO₄⁻ + 8H⁺ + 5e⁻ → Mn²⁺ + 4H₂O?
Question 825
How many oxygen atoms are directly bonded to the central manganese atom in the permanganate ion?