Balancing Chemical Equations Video Lessons

Video Thumbnail

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.


98% (496 ratings)
View Complete Written Solution
Problem Details

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

A) 3

B) 5

C) 4

D) 8

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Balancing Chemical Equations concept. You can view video lessons to learn Balancing Chemical Equations. Or if you need more Balancing Chemical Equations practice, you can also practice Balancing Chemical Equations practice problems.