Decompoistion of hydrogen peroxide,
`2H_(2)O_(2) rarr 2H_(2)O + O_(2)` is a …………. .

Answer

To determine the nature of the decomposition of hydrogen peroxide represented by the equation:

\[ 2H_{2}O_{2} \rightarrow 2H_{2}O + O_{2} \]

we can analyze the reaction step by step.

### Step 1: Identify the Reaction Type
The given reaction is a decomposition reaction. In a decomposition reaction, a single compound breaks down into two or more simpler products. Here, hydrogen peroxide (H₂O₂) decomposes into water (H₂O) and oxygen gas (O₂).

**Hint:** Look for reactions where one compound breaks down into multiple products to identify decomposition reactions.

### Step 2: Examine the Stability of Reactants
Hydrogen peroxide (H₂O₂) is known to be an unstable compound. It can decompose readily, especially in the presence of light or heat. This instability leads to its breakdown into water and oxygen.

**Hint:** Consider the stability of the reactants when determining the nature of the reaction.

### Step 3: Consider the Energy Changes
During the decomposition of hydrogen peroxide, energy is released in the form of heat. This indicates that the reaction is exothermic. In exothermic reactions, the energy of the products is lower than that of the reactants, resulting in the release of energy.

**Hint:** Check if the reaction releases energy (heat) to classify it as exothermic.

### Step 4: Conclusion
Based on the analysis, we conclude that the decomposition of hydrogen peroxide is a **decomposition reaction** that is also **exothermic** due to the release of heat.

**Final Answer:** The decomposition of hydrogen peroxide, \( 2H_{2}O_{2} \rightarrow 2H_{2}O + O_{2} \), is a **decomposition reaction** and it is **exothermic**.