N2+H2=NH3 what properties does it contain

Question

This topic is about physical science and I need help answering this question

Answer 1

The balanced reaction is 

N₂(g) + 3H₂(g) ==> 2NH₃(g)

What properties does it contain?  This question doesn't really make sense.  But you might answer by saying that all reactants and products are gases.  That's about the only "property" it contains.