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Hydrogen Peroxide Disproportionation

On the dissimilation of hydrogen peroxide
Hydrogen peroxide is a chemical substance with unique properties. It is often dissimilated in chemical reactions.

Hydrogen peroxide, the molecular formula is\ (H_ {2} O_ {2}\), and its appearance is colorless and transparent. Its molecular structure is special, and the oxygen atoms are connected by peroxygen bonds. This structure gives it instability, so it is prone to dissimilation.

When hydrogen peroxide encounters suitable conditions, such as heat, light or the presence of a catalyst, it decomposes into water and oxygen, which is a typical dissimilation reaction. The reaction equation is:\ (2H_ {2} O_ {2}\ stackrel {catalyst }{=\!=\! =} 2H_ {2} O + O_ {2}\ uparrow\).

In this reaction, the valence of the oxygen element of hydrogen peroxide rises and decreases. Part of the oxygen decreases from the\ (-1\) valence to the\ (-2\) valence to form water; part of the oxygen rises from the\ (-1\) valence to the\ (0\) valence to form oxygen. In this process, hydrogen peroxide is both an oxidizing agent and a reducing agent.

catalysts play a significant role in the disproportionation of hydrogen peroxide. Common catalysts include manganese dioxide\ ((MnO_ {2}) \), catalase, etc. Taking manganese dioxide as an example, its surface activity check point can adsorb hydrogen peroxide molecules, reduce the activation energy of the reaction, and greatly accelerate the reaction rate.

The disproportionation reaction of hydrogen peroxide is widely used in practical applications. In the medical field, its dilute solution is often used as a disinfectant. The oxygen produced by the disproportionation reaction can be used as an oxidant to participate in specific chemical reactions.

In short, the disproportionation reaction of hydrogen peroxide occurs due to its own characteristics and external conditions. Its application in many fields shows the charm and value of chemical science.