A compound contains nitrogen and a metal. This compound goes through a combustion reaction such that compound X is produced from the nitrogen atoms and compound Y is produced from the metal atoms in the reactant. What are the compounds X and Y?
X is nitrogen dioxide, and Y is a metal halide.
X is nitrogen dioxide, and Y is a metal oxide.
X is nitrogen gas, and Y is a metal sulfate.
X is nitrogen gas, and Y is a metal oxide.