Make an equation: N2 → NH3 → NO2 → HNO3 → Pb (NO3) 2 → O2 ↓ NO

1. Nitrogen reacts with hydrogen to form ammonia.

2. Ammonia forms nitrogen oxides during combustion.

3. Nitric oxide (IV) has an intermediate oxidation state of +4, therefore, when dissolved in water, it forms two acids: nitric and nitrous.

4. Nitric acid, like other acids, reacts with metals, but in a special way, with lead, depending on the concentration of the acid, mainly nitric oxide (IV) is formed.

5. Salts of nitric acid have a tendency to decompose when heated. We compose the reaction equation for the decomposition of lead nitrate.

6. Nitrogen burns to form oxides.