2 molecules of nitrogen (N2) react with 6 molecules of hydrogen (H2) to produce some amount of ammonia (NH3).

Question

Complete the table below.
Chemical element Number of atoms in the reaction

During this reaction, how many molecules of ammonia (NH3) are produced?

Answer 1

The balanced chemical equation for the reaction of nitrogen (N₂) with hydrogen (H₂) to produce ammonia (NH₃) is:

\[ N_2 + 3H_2 \rightarrow 2NH_3 \]

From the balanced equation, we can see that:

• For every 1 molecule of N₂, 3 molecules of H₂ are required to produce 2 molecules of NH₃.

Given that you start with 2 molecules of N₂ and 6 molecules of H₂, we can analyze the stoichiometry:

• For 2 molecules of N₂:
  • You would need \(2 \times 3 = 6\) molecules of H₂.

Since you have exactly 6 molecules of H₂, both N₂ and H₂ will be completely consumed in the reaction, producing:

• 2 molecules of N₂ produce 2 × 2 = 4 molecules of NH₃.

Now let's complete the table with the number of atoms for each chemical element involved in the reaction.

| Chemical Element | Number of Atoms in the Reaction | |-------------------|-----------------------------------| | Nitrogen (N) | 4 (from 2 N₂ molecules) | | Hydrogen (H) | 12 (from 6 H₂ molecules) | | Ammonia (NH₃) | 12 (from 4 NH₃ molecules) |

So, the amount of ammonia (NH₃) produced in this reaction is 4 molecules.