Consider the following for the mechanism oxidation of bromide ions by hydrogen peroxide in aqueous acid solution. Elementary Step 1 H* + H₂O₂ = {H₂O*- OH) (rapid equilibrium) Elementary Step 2 (H₂O*-OH) + Br¯ → HOBR + H₂O (slowest) Elementary Step 3 HOBr + H+ + Br¯ → Br₂ + H₂O (fast) Consider the reaction profile below. What is the approximate activation energy (Ea) for elementary step 2? >

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