In acidic solution, O3 and Mn2+ ions react spontaneously: O3(g) + Mn2+(aq) + H2O(l) → O2(g) + MnO2(s) + 2H+(aq) E o cell = 0.84 V Write the balanced half-reactions and calculate E o manganese when given E o ozone = 2.07 V. Include states of matter in your answers.