Decompositon of hydrogen peroxide is an exothermic reaction.

Explanation

To analyze the decomposition of hydrogen peroxide (H2O2) as an exothermic reaction, we can break down the process step by step.

### Step 1: Understand the Reaction
The decomposition of hydrogen peroxide can be represented by the following chemical equation:
\[ 2 H_2O_2 (l) \rightarrow 2 H_2O (l) + O_2 (g) \]

### Step 2: Identify the Bonds Involved
In the reactants (H2O2), we have:
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