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20 April, 16:14

Which coefficient of O2 is needed to balance the equation C3H8 + O2 → 3CO2 + 4H2O? 2 3 5 6

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  1. 20 April, 17:33
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    The answer would be 5.

    Equation = C3 H8 + O2 → Co2 + H2O

    Balanced equation = C3H8 + O2 → 3CO2 + 4H2O

    In the first part, left side, has 2 oxygens, and the next one has 10. So in order to turn 2 into 10, add the coefficient 5.
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