# How do you write and balance the equation for the complete combustion of acetylene, C_2H_2?

$H C \equiv C H \left(g\right) + \frac{5}{2} {O}_{2} \left(g\right) \rightarrow 2 C {O}_{2} \left(g\right) + {H}_{2} O \left(l\right)$