🧪Catalytic Decomposition of H2O2 using MnO2 - Mr Pauller

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This video shows a demonstration of the catalytic decomposition of hydrogen peroxide using manganese (IV) oxide as a catalyst.

Reaction: 2H2O2 = 2H2O + O2

The wood splint with the glowing ember ignites due to the high concentration of oxygen gas inside of the Erlenmeyer flask.
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So I wanted to recreate this experiment and was just wondering how you dispose of the mixture

KolbyM.
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Student: How unstable your camera do u want to be
Noel: Yes

seafoamsweater
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Can u please tell that h2o2 will decompose into water and oxygen after about how much time on adding mno2 ?
Also, plz tell the temperature and pressure involved
And, is it exothermic, endothermic, or none ?

Shaurya_Agarwal
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Can you please name with which molecules it ended up?

yarynashkutyak