Question

Determine if the following reaction is a redox reaction; if it is, select the correct overall oxidation-reduction reaction. (You may need to use Tables A-1, A-2, A-3, and A-4 in your CRG for oxidation numbers.)

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

Answer 1

The given reaction N2(g) + 3H2(g) -> 2NH3(g) is a redox reaction, with N being reduced and H being oxidized.

Step-by-step explanation:

To determine if the given reaction is a redox reaction, we need to calculate the oxidation numbers of the elements in the reactants and products. In the reaction N2(g) + 3H2(g) -> 2NH3(g), the oxidation number of N in N2 is 0, and in NH3 is -3. The oxidation number of H in H2 is 0, and in NH3 is +1. Hence, N is reduced from 0 to -3, and H is oxidized from 0 to +1. Therefore, this reaction is a redox reaction.

The overall oxidation-reduction reaction can be represented as:

N2(g) + 6H2(g) -> 2NH3(g)