# What is the product of the chemical equation C_3H_8(g) + 5O_2(g)?

May 18, 2016

Carbon dioxide and water.

#### Explanation:

Under conditions of complete combustion, a hydrocarbon is always combusted to carbon dioxide and water:

${C}_{3} {H}_{8} \left(g\right) + 5 {O}_{2} \left(g\right) \rightarrow 3 C {O}_{2} \left(g\right) + 4 {H}_{2} O \left(g\right)$

Is this reaction stoichiometrically balanced? How do you know?

Can you do the same thing with pentane, ${C}_{5} {H}_{12}$, with butane, ${C}_{4} {H}_{10}$? Why does butane have different stoichiometry?