Write the balanced overall reaction for the three-step mechanism.
1. C4H9Br → C4H9⁺ + Br⁻
2. C4H9⁺ + H2O → C4H9OH2⁺
3. C4H9OH2⁺ + H2O → C4H9OH + H3O⁺

C₄H₉Br + 2H₂O → Br⁻ + C₄H₉OH + H₃O⁺

It's basically a dissolution of C₄H₉Br in H₂O reaction.

Explanation:

C₄H₉Br → C₄H₉⁺ + Br⁻

C₄H₉⁺ + H₂O → C₄H₉OH₂⁺

C₄H₉OH₂⁺ + H₂O → C₄H₉OH + H₃O⁺

Summing up all of the reactions, as they are all balanced individually

C₄H₉Br + C₄H₉⁺ + H₂O + C₄H₉OH₂⁺ + H₂O → C₄H₉⁺ + Br⁻ + C₄H₉OH₂⁺ + C₄H₉OH + H₃O⁺

Then, the intermediates that occur on both sides cancel out, to give

C₄H₉Br + H₂O + H₂O → Br⁻ + C₄H₉OH + H₃O⁺

Summing the two molecules of H₂O, the balanced equation becomes

C₄H₉Br + 2H₂O → Br⁻ + C₄H₉OH + H₃O⁺

Explanation:

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