In the industrial production of nitric acid the following changes occur: phase 1 phase 2 phase 3phase 4 N2 →NH3→NO→NO2 →HNO 3 a.Put the oxidation number of the nitrogen atom in each molecule. b. For each phase indicate whether oxidation or reduction has occurred. Explain your answer. C. Name NO2

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Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".