The main component of the nitrogen cycle starts with the element nitrogen in the air. Two nitrogen oxides are found in the air as a result of interactions with oxygen. Nitrogen will only react with oxygen in the presence of high temperatures and pressures found near lightning bolts and in combustion
reactions in power plants or internal combustion engines. Nitric oxide (NO) and nitrogen dioxide (NO2) are formed under these conditions. Eventually nitrogen dioxide may react with water in rain to form nitric acid, HNO3.
reactions in power plants or internal combustion engines. Nitric oxide (NO) and nitrogen dioxide (NO2) are formed under these conditions. Eventually nitrogen dioxide may react with water in rain to form nitric acid, HNO3.