---
title: "A student investigates the decomposition of an aqueous solution of hydrogen peroxide, \\(\\text{H}_2\\text{O}_2\\text{(aq)}\\), as represented by the balanced equation below.  \\[ 2\\text{H}_2\\text{O}_2\\text{(aq)} \\rightarrow 2\\text{H}_2\\text{O(l)} + \\text{O}_2\\text{(g)} \\]  Which of the following correctly identifies the element that is oxidized and the element that is reduced in this reaction?"
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url: "https://nerd-notes.com/ubq/119892/"
date_modified: "2026-08-21T08:17:05+00:00"
---

# A student investigates the decomposition of an aqueous solution of hydrogen peroxide, \(\text{H}_2\text{O}_2\text{(aq)}\), as represented by the balanced equation below.

\[ 2\text{H}_2\text{O}_2\text{(aq)} \rightarrow 2\text{H}_2\text{O(l)} + \text{O}_2\text{(g)} \]

Which of the following correctly identifies the element that is oxidized and the element that is reduced in this reaction?

A student investigates the decomposition of an aqueous solution of hydrogen peroxide, \(\text{H}_2\text{O}_2\text{(aq)}\), as represented by the balanced equation below.

\[ 2\text{H}_2\text{O}_2\text{(aq)} \rightarrow 2\text{H}_2\text{O(l)} + \text{O}_2\text{(g)} \]

Which of the following correctly identifies the element that is oxidized and the element that is reduced in this reaction?

- **A.** \(\text{H}\) is oxidized, and \(\text{O}\) is reduced.
- **B.** \(\text{O}\) is oxidized, and \(\text{H}\) is reduced.
- **C.** \(\text{O}\) is both oxidized and reduced.
- **D.** \(\text{H}\) is both oxidized and reduced.

*The answer key and step-by-step explanation are available to logged-in users at https://nerd-notes.com/ubq/119892/*