Octane + oxygen

Answer 1

Not much of a question, in fact, no question at all. I'll assume you want the balanced equation for the reaction of octane with oxygen, i.e. combustion of octane.

Octane = C₈H₁₈

Oxygen = O₂

2C₈H₁₈ + 25O₂ ==> 16CO₂ + 18H₂O ... balanced equation