Propane camping stoves produce heat by the combustion of gaseous propane (C3H8). Balance the skeletal equation for the combustion of propane.

C3H8 (g) + O2 (g) →CO2 (g) + H2O (g)

Easy (:

C₃H₈ (g) + O₂ (g) - - - > CO₂ (g) + H₂O

1 C₃H₈ (g) + 5 O₂ (g) - - - > 3 CO₂ (g) + 4 H₂O

With this there is the same amount of elements on each side (You take the larger number in front and multiply it by whats after it. So you have 3 C, 8 H, and 10 O on one side, and then the next mirrors is with 3 C, 8 H, and 10 O.