Phương trình để điều N2 trong phòng thí nghiệm là:
A.$$N{H_4}N{O_2}{\rm{ }}\buildrel {{t^0}} \over \longrightarrow {\rm{ }}{N_2} \uparrow {\rm{ }} + {\rm{ }}{H_2}O$$
B.$$4N{H_3}{\rm{ }} + {\rm{ }}4{O_2}{\rm{ }}\buildrel {{t^0}} \over \longrightarrow {\rm{ }}2{N_2}{\rm{ }} + {\rm{ }}6{H_2}O$$
C.$${\rm{5Mg + 12HN}}{{\rm{O}}_3}{\rm{ }}\buildrel {{t^0}} \over \longrightarrow {\rm{ 5Mg(N}}{{\rm{O}}_3}{)_2} + {N_2} \uparrow {\rm{ }} + {\rm{ 6}}{H_2}O$$
D.$${\rm{Kh\ll ng kh\'Y h\~a a l\'a ng }}\buildrel {{\rm{ph\copyrightn on}}} \over \longrightarrow {\rm{ }}{N_2} \uparrow {\rm{ }} + {\rm{ }}{O_2} \uparrow $$
A.$$N{H_4}N{O_2}{\rm{ }}\buildrel {{t^0}} \over \longrightarrow {\rm{ }}{N_2} \uparrow {\rm{ }} + {\rm{ }}{H_2}O$$
B.$$4N{H_3}{\rm{ }} + {\rm{ }}4{O_2}{\rm{ }}\buildrel {{t^0}} \over \longrightarrow {\rm{ }}2{N_2}{\rm{ }} + {\rm{ }}6{H_2}O$$
C.$${\rm{5Mg + 12HN}}{{\rm{O}}_3}{\rm{ }}\buildrel {{t^0}} \over \longrightarrow {\rm{ 5Mg(N}}{{\rm{O}}_3}{)_2} + {N_2} \uparrow {\rm{ }} + {\rm{ 6}}{H_2}O$$
D.$${\rm{Kh\ll ng kh\'Y h\~a a l\'a ng }}\buildrel {{\rm{ph\copyrightn on}}} \over \longrightarrow {\rm{ }}{N_2} \uparrow {\rm{ }} + {\rm{ }}{O_2} \uparrow $$
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