When the following equation is balanced, the coefficient of O2 is: ___O2 + ___C5H12 → ___CO2 + ___H2OGroup of answer choices3458none of the above.

To balance the given equation, we need to ensure that the number of atoms of each element on the reactant side equals the number of atoms of the same element on the product side.

The unbalanced equation is: O2 + C5H12 → CO2 + H2O

Step 1: Balance the carbon atoms. There are 5 carbon atoms in C5H12, so put a 5 in front of CO2. O2 + C5H12 → 5CO2 + H2O

Step 2: Balance the hydrogen atoms. There are 12 hydrogen atoms in C5H12, so put a 6 in front of H2O. O2 + C5H12 → 5CO2 + 6H2O

Step 3: Balance the oxygen atoms. There are 10 oxygen atoms in 5CO2 and 6 oxygen atoms in 6H2O, making a total of 16 oxygen atoms on the product side. Therefore, put an 8 in front of O2. 8O2 + C5H12 → 5CO2 + 6H2O

So, the coefficient of O2 in the balanced equation is 8.