Question

N2-NH3-HO-HO2-HNO3-NH4No3

Answer 1

N2 + 3H2 = 2NH3
4NH3 + 5O2 = 4NO + 6H2O
2NO + O2 = 2NO2
4NO2 + O2 + 2H2O = 4HNO3
HNO3 + NH3 = NH4NO3

Answer 2

The given sequence of chemical compounds represents a possible pathway for the formation of ammonium nitrate [(NH4)NO3], which is a commonly used fertilizer and explosive.

The pathway starts with molecular nitrogen (N2), which is abundant in the Earth's atmosphere. Nitrogen gas can be converted into ammonia (NH3) through a process called Haber-Bosch process, which involves reacting nitrogen and hydrogen (usually obtained from natural gas) at high temperatures and pressures in the presence of a catalyst.

The ammonia (NH3) can then react with atmospheric water vapor (HO) to form ammonium hydroxide (NH4OH), which can further react with atmospheric oxygen (O2) to form hydrogen peroxide (HO2).

The hydrogen peroxide (HO2) can then react with nitrogen dioxide (NO2), which is formed through the oxidation of atmospheric nitrogen oxide (NO) in the presence of sunlight, to form nitric acid (HNO3).

Finally, the nitric acid (HNO3) can react with the ammonium hydroxide (NH4OH) to form ammonium nitrate [(NH4)NO3], which is a white crystalline solid that is highly soluble in water.

Overall, this pathway represents a complex series of chemical reactions that require specific conditions to occur. However, it demonstrates how atmospheric nitrogen can be converted into a useful compound for agriculture and industry.