Hydrogen peroxide (#H_2O_2#) decomposes to form water and oxygen. How do you write the balanced equation for this reaction?

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anor277 Share
Dec 20, 2015

Answer:

#2H_2O_2(l) rightleftharpoons 2H_2O(l) + O_2(g)#

Explanation:

This is in fact a disproportionation reaction in that oxygen in peroxide (#-I# oxidation state) has given water (#-II# oxidation state for oxygen) and zerovalent oxygen gas (#0# oxidation state for oxygen).

Often a #Mn^(2+)# salt is added to catalyze this reaction.

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