Answer :
Answer: The coefficient of oxygen in the balanced equation is 25
Explanation:
A balanced chemical equation is defined as the equation in which total number of individual atoms on the reactant side is equal to the total number of individual atoms on product side.
Law of conservation of mass states that mass can neither be created nor be destroyed but it can only be transformed from one form to another form.
Combustion reaction is defined as the reaction in which a hydrocarbon reacts with oxygen gas to produce carbon dioxide gas and water molecule.
The chemical equation for the combustion of octane follows:
[tex]2C_8H_{18}+25O_2\rightarrow 16CO_2+18H_2O[/tex]
By Stoichiometry of the reaction:
2 moles of octane reacts with 25 moles of oxygen gas to produce 16 moles of carbon dioxide and 18 moles of water.
Hence, the coefficient of oxygen in the balanced equation is 25