1.

The Ostwald process is the main method for the manufacture of nitric acid. In the first step in this process

Answer»

nitrogen and HYDROGEN REACT to FORM `NH3`
ammonia is BURNED in `O_2` to generate `N_2 and H_2O`
nitrogen and OXYGEN react to form `NO_2`
ammonia is burned with `O_2` to generate `NO and H_(2)O`

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