Analysis there can be no effect without a cause," modestly answered candide; "the whole is necessarily concatenated and arranged for the best. it was necessary for me to have been banished from the presence of miss cunegonde, to have afterwards run the gauntlet, and now it is necessary i should beg my bread until i learn to earn it; all this cannot be otherwise

idk

explanation:

2h2o2--> 2h2o + o2

this reaction is of the spontaneous decomposition of hydrogen peroxide down into water and oxygen.

add 2 molecules of hydrogen peroxide and 2 molecules of water. since oxygen is naturally diatomic, the total number of atoms of each element is now the same on both sides of the equation so it is balanced.

this may not be entirely correct but let me know.

i'm wiling to try and you : )