H2O2 + MnO2 (Hydrogen peroxide + Manganese dioxide)

H2O2 (hydrogen perioxide) will decompose into H2O and O2 on its own, albeit slowly. One reason H2O2 comes in dark bottles is to slow this process, which is accelerated by light. To catalyze, or speed up the reaction, we can add MnO2 (Manganese dioxide) to the H2O2. The MnO2 isn’t changed as a result of the reaction and is not considered a reactant. Instead, we write MnO2 above the “yields” arrow to show that it served as a catalyst in the reaction.

There is also an enzyme in your blood called catalase. That is why you see bubbles when you put H2O2 on a wound. The bubbles are O2 gas. Note that enzymes are considered biological catalysts.

[k]

Here's the balanced equation:

2 H2O2 -> 2 H2O + O2

[mr.merlin]

As I say you learn faster on youtube than at school. Thanks for the video!

[induwariperera]

I totally learnt the balanced equation lesson from you.Not from my school teacher.Thank you so much.

[NicleT]

What is the chemical result of this reaction?

Found it: Manganese dioxide is a catalyst that will help H2O2 -MnO2-> H2O + O2

Water and Oxygen will evaporate leaving the manganese dioxide as residue.

So the fume should be non-toxic.

Am I right?

[abcdef]

H2O2 -> H2 + O2 is there a way without electrolysis?

[hartjadenryanfernando]

As i say it is faster watching chemistry in YouTube than teacher

[sonnman]

can anyone pls tell the KJ/mol of this reaction pls or how to know the KJ/mol pls 🙏🙏🙏

[CheapseaChicken]

could you tell me the rate expression for this reaction? what is the order on the MnO2? thank you

[ABine]

when it reacts with KClO3, is MnO2 also a catalyst?

[tonyh]

Does magnesium oxide as a catalyst produce more oxygen gas then KI as a catalyst?

[victorvandenhende]

Can you write the full redox equation i need it for uni and i dont find it on internet.

[karinaramirez]

could you tell me if the MnO2 has catalase? or why is that it acts as a catalyst? Also I found that MnO2 is an oxidant, as it is the Hydrogen peroxide, how can the first one decompose the H2O2? I will be in forever debt if you answer this. thanks

[СергейКраснов-йв]

Разве не идёт такая реакция: MnO2+H2O2→MnO+H2O+O2↑? Спасибо)

[randomstuff]

So the bottle burst because of oxygen overpressure...