The Balanced Equation for the Reaction of Nitrogen and Hydrogen

Multiple Choice

The balanced equation for the reaction of nitrogen and hydrogen to form ammonia is given below.What do the numbers in front of the molecules (the coefficients) mean? N₂ + 3 H₂ → 2 NH₃

A) Three moles of H₂ react with one mole of N₂ to give two moles of NH₃.
B) Three grams of H₂ react with one gram of N₂ to give two grams of NH₃.
C) Three atoms of H react with one atom of N to give two molecules of NH₃.
D) Two grams of N react with six grams of H to give eight grams of NH₃.
E) All of the above are correct representations.