Exercise 7 | The periodic table and Chemical Periodicity
Solid sodium nitride decomposes to form solid sodium metal and nitrogen gas. Give the chemical equation of this reaction.
Solid sodium nitride = Na3N (s)
Solid sodium metal = Na (s)
Nitrogen gas = Diatomic molecule = N2 (g)
Na3N (s) → Na (s) + N2 (g) (unbalanced)
And after balancing the chemical equation:
2 Na3N (s) → 6 Na (s) + N2 (g)