One way to make ammonia is to synthesize it directly from elemental nitrogen and hydrogen

The equation for this reaction would be N2 + 3 H2 → 2 NH3. If you are able to stream in 7.0 g of N2, what would be the minimum amount of H2 in grams that would be required to completely react with this amount of N2?

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  A. 1.5 g
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  B. 0.5 g
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  C. 0.75 g
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  D. 3.0 g
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  E. none of the above