Why is chemical composition important?

answer:

chemical composition lets us determine how much of a particular element is contained in a particular compound.

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brainliest plzzz?

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.

it's filtration, but this is an assumption so my apologies if i got this