Balancing Chemical Equations Video Lessons

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Concept: Balancing Chemical Reactions

Problem: When the equation _O2 + ­­_C5H12 -> _CO2 + _H2O is balanced the coefficient of O2 isA) 3B) 5C) 4D) 8

FREE Expert Solution

We are being asked to determine the coefficient of oxygen when the following equation is balanced

_O2 + ­­_C5H12 -> _CO+ _H2

Recall that when balancing chemical equations, we have to make sure that the number of elements on both sides is equal with the lowest whole number coefficients.

Initially, there are 2 O, 5 C, 12 H in the reactant side and 3 O, 1 C, 2 H in the product side.

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Problem Details

When the equation _O2 + ­­_C5H12 -> _CO+ _H2O is balanced the coefficient of O2 is

A) 3

B) 5

C) 4

D) 8

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