Why does manganese oxide react with hydrogen peroxide?

Answer 1

When the Maganese Dioxide (black powder) was added to the Hydrogen Peroxide (clear), it bubbled.

It creates Water and Oxygen gas.

The reaction is Decomposition.

Hydrogen Peroxide --> Water + Oxygen

2Hâ‚‚Oâ‚‚ --> 2Hâ‚‚O + Oâ‚‚

When you write the reaction, make sure you put manganese dioxide over the yield symbol because it is a catalyst.
Manganese dioxide catalyzes the decomposition of hydrogen peroxide, to Water and oxygen:

2 H2O2 ---MnO2---> 2 H2O + O2

Answer 2

Manganese oxide reacts with hydrogen peroxide because manganese can exist in multiple oxidation states, making it a good catalyst for the decomposition of hydrogen peroxide into oxygen gas and water. This reaction is facilitated by the transfer of electrons between manganese ions and hydrogen peroxide molecules.

Answer 3

More commonly, it's done the other way around; MnO2 is added in small amounts to a larger volume of H2O2. Manganese dioxide will catalyze the release of oxygen when added to hydrogen peroxide. The peroxide, H2O2, becomes H2O + O. The oxygen escapes as a gas, leaving water. Adding a small amount of hydrogen peroxide to a larger quantity of manganese dioxide would quickly (perhaps violently, depending on the concentration of the H2O2) release oxygen and leave a black, muddy mass of wet (but otherwise unchanged) MnO2.

Answer 4

Manganese dioxide catalyzes the decomposition of hydrogen peroxide, to Water and Oxygen molecules:

2 H2O2 ---MnO2---> 2 H2O + O2

Answer 5

First, it foams up like a shaken root beer bottle and spews out. Then, it gets extremely hot, so hot, that it can burn a hole in the ground! Then blackish bluish smoke will emerge from it. Finally, it will evaporate into nothingness.

Answer 6

When you combine Manganese dioxide with hydrogen peroxide oxygen is released.

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Answer 7

The reaction is speeded up....and water and oxygen are the products.

Answer 8

Manganese dioxide catalyzes the decomposition of hydrogen peroxide, to Water and oxygen:

2 H2O2 ---MnO2---> 2 H2O + O2

Answer 9

Manganese dioxide catalyzes the decomposition of hydrogen peroxide, to Water and oxygen:

2 H2O2 ---MnO2---> 2 H2O + O2

Answer 10

No it does not have any change in its chemical composition at all