It should looks like this 8CO_2+10H_2O"> 2 C 4 H 10 + 13 O 2 − > 8 C O 2 + 10 H 2 O
The balanced equation for the combustion of butane shows that the coefficient of CO₂ is 8. By balancing the carbon and hydrogen atoms first, we determined the necessary amount of oxygen. Therefore, the correct answer to the question is option b, 8.
;