Under Appropriate Conditions, Nitrogen and Hydrogen Undergo a Combination Reaction

Multiple Choice

Under appropriate conditions, nitrogen and hydrogen undergo a combination reaction to yield ammonia: N₂ (g) + 3H₂ (g) → 2NH₃ (g)
A 7.1-g sample of N₂ requires ________ g of H₂ for complete reaction.

A) 0.51
B) 0.76
C) 1.2
D) 1.5
E) 17.2