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ManganeseDioxideReactionWithHydrogenPeroxideReason
The reason why manganese dioxide and hydrogen peroxide can react is worth exploring.
Hydrogen peroxide contains a peroxide bond in its molecular structure, which is unstable and prone to fracture and decomposition. Under normal circumstances, the decomposition rate of hydrogen peroxide is relatively slow.
In this reaction, manganese dioxide acts as a catalyst. Catalyst, can change the rate of chemical reaction, and its own mass and chemical properties do not change before and after the reaction. Manganese dioxide has a special crystal structure and chemical activity, and there are many active check points on its surface.
When hydrogen peroxide comes into contact with manganese dioxide, hydrogen peroxide molecules will adsorb to the active check point on the surface of manganese dioxide. During this process, a short-term chemical bond is formed between manganese dioxide and hydrogen peroxide molecules. This effect prompts changes in the electron cloud distribution of peroxide bonds within hydrogen peroxide molecules, making peroxide bonds more susceptible to breakage.
Once the peroxide bond breaks, hydrogen peroxide decomposes into water and oxygen. After assisting in the decomposition of hydrogen peroxide, manganese dioxide returns to its original state and continues to participate in the decomposition process of subsequent hydrogen peroxide molecules, accelerating the rate of hydrogen peroxide decomposition over and over again. Therefore, manganese dioxide can react with hydrogen peroxide, which actually reduces the activation energy of hydrogen peroxide decomposition due to the characteristics of the catalyst, allowing the originally slow decomposition reaction to proceed rapidly.
Hydrogen peroxide contains a peroxide bond in its molecular structure, which is unstable and prone to fracture and decomposition. Under normal circumstances, the decomposition rate of hydrogen peroxide is relatively slow.
In this reaction, manganese dioxide acts as a catalyst. Catalyst, can change the rate of chemical reaction, and its own mass and chemical properties do not change before and after the reaction. Manganese dioxide has a special crystal structure and chemical activity, and there are many active check points on its surface.
When hydrogen peroxide comes into contact with manganese dioxide, hydrogen peroxide molecules will adsorb to the active check point on the surface of manganese dioxide. During this process, a short-term chemical bond is formed between manganese dioxide and hydrogen peroxide molecules. This effect prompts changes in the electron cloud distribution of peroxide bonds within hydrogen peroxide molecules, making peroxide bonds more susceptible to breakage.
Once the peroxide bond breaks, hydrogen peroxide decomposes into water and oxygen. After assisting in the decomposition of hydrogen peroxide, manganese dioxide returns to its original state and continues to participate in the decomposition process of subsequent hydrogen peroxide molecules, accelerating the rate of hydrogen peroxide decomposition over and over again. Therefore, manganese dioxide can react with hydrogen peroxide, which actually reduces the activation energy of hydrogen peroxide decomposition due to the characteristics of the catalyst, allowing the originally slow decomposition reaction to proceed rapidly.
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