Octane (C₈H₁₈ )reacts with oxygen (O₂)to form carbon dioxide (CO₂)and water (H₂O).When the equation below is balanced,the coefficient of octane is:
C₈H₁₈ + O₂ → CO₂ + H₂O

Question

Quizplus · Accepted Answer

The first step in balancing a chemical equation is to write the correct formulae of the reactants and products.

The balanced equation for the combustion of octane is:

C8H18 + 12.5 O2 → 8 CO2 + 9 H2O

Counting the number of atoms on both sides, we can see that the equation is now balanced.

Therefore, the coefficient of octane is 2.

Hence, the answer is Option C.

Octane (C₈H₁₈ )Reacts with Oxygen (O₂)to Form Carbon Dioxide (CO₂)and