The chemical equation for the formation of ammonia is unbalanced. 3h2(g) + n2(g) mc020-1.jpg nh3(g) if three molecules of hydrogen react with one molecule of nitrogen, how many molecules of ammonia would be formed?

Balance Chemical equation is as follow,

                           3 H₂ (g) + N₂ (g)    →    2 NH₃ (g)

According to balanced equation, 3 Molecules (3 moles) of Hydrogen reacts with 1 Molecule of N₂ to produce 2 moles (2 Molecules) of NH₃.

Result:
          2 Molecules of Ammonia are produced by reacting 3 molecules of Hydrogen and 1 molecule of Nitrogen.

Idon't see the pic?

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