1) Li + 2HNO3 = LiNO3 + NO2 + H2O (when lithium interacts with nitric acid, lithium nitrate, nitrogen (IV) oxide and water are formed);
2) 4LiNO3 = 2Li2O + 4NO2 + O2 (when heated, lithium nitrate decomposes into lithium oxide, nitrogen (IV) oxide and oxygen);
3) O2 + N2 = 2NO (when oxygen interacts with nitrogen, nitrogen oxide (II) is formed);
4) NO + O3 = NO2 + O2 (when nitric oxide (II) interacts with ozone, nitrogen oxide (IV) and oxygen are formed);
5) 3NO2 + H2O = 2HNO3 + NO (when nitrogen (IV) oxide interacts with water, nitric acid and nitric oxide (II) are formed).
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