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1 December, 02:11

During the combustion of 5.000 g of octane, C8H18, 239.5 kcal is released. Write a balanced equation for the combustion reaction. Express your answer as a chemical equation with whole number coefficients. Include phases.

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  1. 1 December, 02:35
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    The chemical equation for this combustion reaction is:

    C8H18 + O2 - - > CO2 + H2O

    Balancing by adding whole number coefficients:

    2 C8H18 + 25 O2 - - > 16 CO2 + 18 H2O

    Including the phases:

    2 C8H18 (l) + 25 O2 (g) - - > 16 CO2 (g) + 18 H2O (l)

    where g is gas and l is liquid
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