Consider the following mechanism for the oxidation of bromide ions by hydrogen peroxide in aqueous acid solution. Which of the following rate laws is consistent with the mechanism?
1. H+ + H2O2 --> H2OOH+ (fast equilibrium)
2. H2OOH+ + Br --> HOBr + H2O (slow)
3. HOBr + H+ + Br -> Br2 + H2O (fast)