Write the reaction equation: С2Н5ОН → С2Н4 → С2Н5Cl → С2Н5NН2 → [С2Н5NН3] NO3 ↓ N2

Let’s compose the reaction equations:
C2H5OH = C2H4 + H2O – dehydration reaction, ethylene was obtained;
Н2С = СН2 + HCl = C2H5Cl – addition, ethane chloride was released;
С2Н5Cl + NH3 = С2Н5NH2 + HCl – exchange, ethylamine was formed;
C2H5NH2 + HNO3 = {C2H5NH3} NO3 – compounds;
{C2H5NH3} NO3 + NaOH = H2O + NaNO3 + C2H5NH2 – exchange, ethylamine was obtained;
4C2H5NH2 + 15O2 = 8CO2 + 2N2 + 14H2O – oxidation, nitrogen evolved.
4С2H5NH2 + 15O2 = 8CO2 + 2N2 + 14H2O – oxidation of ethylamine, nitrogen is released.
These reactions confirm the connection between organic and inorganic compounds.