CH3-CH3 -> CH2=CH2 + H2
CH2=CH2 + HCl -> CH3-CH2-Cl
CH3-CH2-Cl + 2Na + Cl-CH2-CH3 -> CH3-CH2-CH2-CH3 + 2NaCl
2C4H10 + 9O2 -> 8CO2 + 10H2O
