In the reaction 3h2+ what coefficient should be placed in front of nh3 to balance the reaction.
a.1
b2
c.3
d. no coefficient is needed

  2

There are 3·2 = 6 H and 1·2 = 2 N on the left. These are combined as 1N+3H on the right, so the sum needs to be multiplied by 2 to make the numbers match. (6H+2N) = 2(3H+N)

  3H₂ + N₂ ⇔ 2NH₃

2b2t

explanation:

2b2t

there is none because earth is stationary and flat.