Question

N2-NH3-NO2-NANO3-NO2

Answer 1

1)N2+3H2=2NH3
2)4NH3+7O2=6H2O+4NO2
3)2NO2+2NaOH=NaNO3+NaNO2+H2O
4)2NaNO3=t=N2aNO2+O2

Answer 2

It seems like you have provided a sequence of chemical compounds. Here is the chemical equation for the reaction that occurs between these compounds:

2 NO2 + 2 NH3 -> N2 + 3 H2O

In this reaction, nitrogen dioxide (NO2) and ammonia (NH3) react to produce dinitrogen gas (N2) and water (H2O). The other two compounds, sodium nitrite (NaNO2) and sodium nitrate (NaNO3), are not involved in the reaction and are called spectator ions.