I make a slight error, for one thing anything involving chlorine is way too dangerous, i think chlorine is legal to use in swimming pools but aside from that it has no use outside of industrial manufacturing of various chemicals.

For an attemp at making nitrogen gas by electrolysis NH4OH it might not work because the half reaction involves an ionized form of ammonia NH3OH+ as stated in the handbook of chemistry and physics.

I woulden't steel the chemicals from school, and actually I wouldent try to mix anything if I were you unless you know exactly what your doing and what your going to do with it. The only thing would would use something like nitrogen gas for is if you were storing a compound that was unstable in air.