In a chemical reaction, we can determine the number of moles for each compound in a properly balanced reaction by looking at their stoichiometric coefficients, which is the number in front of the compound (or if there is no number, the coefficient will be 1), therefore in the reaction that produces Ammonia, we have:
1 mole of N2 + 3 moles of H2 producing 2 moles of NH3, this is a True statement
