Bonjour
2C₂H₆ + 5O₂ → 4CO + 6H₂O
C₃H₂ + 2O₂ → 3CO + H₂O
4C₄H₃ + 11O₂ → 16CO + 6H₂O
[tex]\rule{6cm}{1mm}[/tex]
[tex]\boxed{\boxed{\red{2}C_{2}H_{6}+\red{5}O_{2} \to \red{4}CO+\red{6}H_{2}O}}[/tex]
[tex]\boxed{\boxed{\red{1}C_{3}H_{2}+\red{5}O_{2} \to \red{4}CO+\red{6}H_{2}O}}[/tex]
[tex]\boxed{\boxed{\red{2}C_{4}H_{3}+\red{11}O_{2} \to \red{16}CO+\red{6}H_{2}O}}[/tex]
[tex]\rule{6cm}{1mm}[/tex]