shown-in-the-mechanism-below-is-the-catalyzed-decomposition-of-hydrogen-peroxide

Question

Shown in the mechanism below is the catalyzed decomposition of hydrogen peroxide. Determine the catalyst/s and the reaction intermediate/s.

Step 1. H₂O₂ + 2 Br^- + 2 H⁺ → 2 H₂O + Br₂

Step 2. H₂O₂ + Br₂ → 2 Br^- + 2 H⁺ + O₂

Accepted Answer

Catalyst/s: Br^- and H⁺, because both are used up in the first step and are regenerated in the second step.

Intermediate/s: Br₂, because Br₂ is produced in the first step and is consumed in the second step.

Answer

Catalyst/s: Br₂, because Br₂ is produced in the first step and is consumed in the second step.

Intermediate/s: Br^- and H⁺, because both are used up in the first step and are regenerated in the second step.

Answer

Br^-, H⁺, and Br₂ are all catalysts and at the same time, intermediates in the reaction mechanism.

Answer

The reaction mechanism has no catalyst and intermediate.

Shown in the mechanism below is the catalyzed decomposition of hydrogen peroxide. Determine the catalyst/s and the reaction intermediate/s.Step 1. H2O2 + 2 Br- + 2 H+ → 2 H2O + Br2Step 2. H2O2 + Br2 → 2 Br- + 2 H+ + O2