Youtor
H2O2 MnO2 Hydrogen peroxide Manganese dioxide
>> YOUR LINK HERE: ___ http://youtube.com/watch?v=KRMla1Aqb5s
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. • MnO2 Image: Public Domain, https://en.wikipedia.org/wiki/Mangane...
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