**Chemical Reaction Mechanism Analysis****Reaction:**\[ 2 \text{H}_2\text{O}_2(aq) \longrightarrow 2 \text{H}_2\text{O}(l) + \text{O}_2(g) \]**Proposed Mechanism in the presence of \(\text{I}^-(aq)\):****Step 1 (Slow):**\[ \text{H}_2\text{O}_2(aq) + \text{I}^-(aq) \longrightarrow \text{H}_2\text{O}(l) + \text{OI}^-(aq) \]**Step 2 (Fast):**\[ \text{H}_2\text{O}_2(aq) + \text{OI}^-(aq) \longrightarrow \text{H}_2\text{O}(l) + \text{O}_2(g) + \text{I}^-(aq) \]**Question:**Which of the following species is a catalyst?**Options:**- A. \(\text{H}_2\text{O}\)- B. This mechanism has no catalysts.- C. \(\text{H}_2\text{O}_2\)- D. \(\text{I}^-\)- E. \(\text{OI}^-\)**Explanation:**In this chemical mechanism, the catalyst is the species that is present at the beginning and is regenerated at the end of the reaction. To determine the catalyst:- \(\text{I}^-\) appears in the initial step and is regenerated in the final step.- \(\text{OI}^-\) is produced in the first step and consumed in the second step, so it is not a catalyst. Therefore, the correct answer is:- **D. \(\text{I}^-\)**Catalysts are essential in chemical reactions as they increase the reaction rate without being consumed in the overall process. This particular example illustrates the role of \(\text{I}^-\) as a catalyst in the decomposition of \(\text{H}_2\text{O}_2\).

Catalysts are those substance which helps in increasing the rate of reaction by decreasing the…

The mechanism for the reaction 2 H202(aq) → 2 H20(1) + O2(g) in the presence of I (aq) is proposed to be: Step 1: Н202(aq) + Г(аq) > H20() + ОГ (аq) slow Step 2: H2O2(aq) + OI (aq) → H20(1) + O2(g)+I(aq) fast Which of the following species is a catalyst? A. H20 B. This mechanism has no catalysts. O C. H2O2 O D:r D.F O E. or Е.

The mechanism for the reaction 2 H202(aq) → 2 H20(1) + O2(g) in the presence of I (aq) is proposed to be: Step 1: Н202(aq) + Г(аq) > H20() + ОГ (аq) slow Step 2: H2O2(aq) + OI (aq) → H20(1) + O2(g)+I(aq) fast Which of the following species is a catalyst? A. H20 B. This mechanism has no catalysts. O C. H2O2 O D:r D.F O E. or Е.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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