1 li₃n + 3 nh₄no₃ ----> 3 lino₃ + 1 (nh₄)₃n\nsynthesis (or combination)\ndecomposition\nsingle…

1 li₃n + 3 nh₄no₃ ----> 3 lino₃ + 1 (nh₄)₃n\nsynthesis (or combination)\ndecomposition\nsingle replacement\ndouble replacement
Answer
Brief Explanations:
In a double - replacement reaction, the positive and negative ions of two ionic compounds exchange places. In the given reaction $Li_3N+3NH_4NO_3\rightarrow3LiNO_3+(NH_4)_3N$, the lithium ions ($Li^+$) from $Li_3N$ and the ammonium ions ($NH_4^+$) from $NH_4NO_3$ swap their anions (nitride $N^{3 - }$ and nitrate $NO_3^-$).
Answer:
Double replacement