Question

Составте уравнения реакций с участием аммиака, используя метод электронного баланса. а) NH3 + O2

Answer 1

2N(3-) - 6e = N2 коэффициент 2
O2 + 4e = 2O(2-) коэффициент 3
4NH3 + 3O2 = 2N2 + 6H2O.

N(3-) - 5e = N(2+) коэффициент 4
O2 + 4e = 2O(2-) коэффициент 5
4NH3 + 5O2 = 4NO+ 6H2O

Answer 2

Balancing the Equation for the Reaction of Ammonia with Oxygen Using the Electron Balance Method

To balance the equation for the reaction of ammonia (NH3) with oxygen (O2) using the electron balance method, we need to ensure that the number of electrons gained and lost in the reaction is equal. Let's proceed with balancing the equation.

The unbalanced chemical equation is: NH3 + O2 →

First, we need to determine the oxidation states of the elements involved in the reaction.

- The oxidation state of nitrogen (N) in ammonia (NH3) is -3. - The oxidation state of oxygen (O) in oxygen (O2) is 0.

Now, let's balance the equation using the electron balance method.

1. Balancing the Nitrogen Atom: - The nitrogen atom in ammonia has an oxidation state of -3, and in the product, it will have an oxidation state of +5 in nitric acid (HNO3). - To balance the nitrogen atom, we need to add 8 electrons to the product side to account for the change in oxidation state.

2. Balancing the Oxygen Atom: - The oxygen atom in oxygen (O2) has an oxidation state of 0, and in the product, it will have an oxidation state of -2 in water (H2O). - To balance the oxygen atom, we need to add 4 electrons to the product side to account for the change in oxidation state.

Now, let's write the balanced equation based on the electron balance method:

2NH3 + 3O2 → N2 + 3H2O

This balanced equation ensures that the number of electrons gained and lost in the reaction is equal, satisfying the electron balance method.