Chapter 3.3, Problem 2CP

Which chemical equation represents the reaction shown? (Blue spheres are nitrogen, and white spheres are hydrogen.)

a)

$6\text{N}\left(g\right)+18\text{H}\left(g\right)\to {\text{6NH}}_{\text{3}}\left(g\right)$

b)

${\text{3N}}_{\text{2}}\left(g\right)+3{\text{H}}_{\text{2}}\left(g\right)\to 2{\text{NH}}_{\text{3}}\left(g\right)$

c)

${\text{2N}}_{\text{2}}\left(g\right)+3{\text{H}}_{\text{2}}\left(g\right)\to 2{\text{NH}}_{\text{3}}\left(g\right)$

d)

${\text{N}}_{\text{2}}\left(g\right)+3{\text{H}}_{\text{2}}\left(g\right)\to 2{\text{NH}}_{\text{3}}\left(g\right)$

e)

${\text{3N}}_{\text{2}}\left(g\right)+6{\text{H}}_{\text{2}}\left(g\right)\to 6{\text{NH}}_{\text{3}}\left(g\right)$