Question

What are the coefficients that will balance the following chemical equation?

____N2 + ___O2 → NO3


1,1,1


1,2,3


1,3,2


3,2,1

Answer 1

1,3,2

Explanation: Let a N2 + b O2 → c NO3. N: 2a = c → c = 2a. O: 2b = 3c = 3(2a) = 6a → b = 3a. With a = 1 gives b = 3, c = 2, so 1 N2 + 3 O2 → 2 NO3.