Question

question 21 of 28 which of the following is the correct balanced equation for the reaction in which hydrogen peroxide (h2o2) is broken down into hydrogen gas and oxygen gas? a. h2o2 → h2 + 2o2 b. 2h2o2 → 2h2 + o2 c. h2o2 → h2 + o2 d. h2o2 → 2h2 + o2

Explanation:

Step1: Identify reactant and products

Reactant: H₂O₂; Products: H₂, O₂. Unbalanced: H₂O₂ → H₂ + O₂.

Step2: Check atom balance for each option

Option A: H₂O₂→H₂+2O₂. O: 2 vs 4 (unbalanced).
Option B: 2H₂O₂→2H₂+O₂. O: 4 vs 2 (unbalanced).
Option C: H₂O₂→H₂+O₂. H: 2=2; O: 2=2 (balanced).
Option D: H₂O₂→2H₂+O₂. H: 2 vs 4 (unbalanced).

Answer:

C. H₂O₂ → H₂ + O₂