my ques ok a coumpond containing 3atoms of carbon an 8 atoms ofhydrogen combined in reaction with oxy molecules the two end products of this equation are carbon dioxide co2 an water wat element should i look at first in balancing this question and wen i hav finished balancing this qestion wich chemical or element will hav the largaest no of molecules in this equation help pleese

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  1. You are talking about the combustion of propane (C3H8).

    The reaction that takes place is

    C3H8 + 5 O2 -> 3 CO2 + 4H2O

    The chemical with the most molecules per reaction is O2.

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