Question: Nitrogen can be obtained by (a) Passing ammonia over red-hot copper(II) oxide and (b) Heating ammonium dichromate [one of the products is Cr(III) oxide]. Write

Nitrogen can be obtained by
(a) Passing ammonia over red-hot copper(II) oxide and
(b) Heating ammonium dichromate [one of the products is Cr(III) oxide]. Write a balanced equation for each preparation.

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