7. If a silly scientist dissolved 64.4 grams of lithium hydroxide in 400 ml of water, how much of this solution will it take to neutralize 15.1 ml of 2.5 M sulfuric acid? Please show work so I can learn (:
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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.

a:

by the combination of an unlimited number of elements

im pretty sure its b