Question 1
What is the correct coefficient for oxygen that would balance the following combustion reaction?

◦ 11
◦ 17
◦ 15
◦ 13
◦ 19
Question 2
Identify the correct coefficients required to balance the following combustion reaction?

◦ I = 3; II = 2; III = 3
◦ I = 15; II = 10; III = 15
◦ I = 5; II = 10; III = 15
◦ I = 10; II = 15; III = 10
◦ I = 15; II = 10; III = 10