Question

Gaseous ammonia (NH3) reacts with gaseous oxygen to form gaseous nitrogen monoxide and gaseous water. Express your answer as a chemical equation. Identify all of the phases in your answer.

Answer 1

To write the skeletal equation, begin by writing the chemical formula for each reactant and product.

Reactants:

1. Ammonia's chemical formula is given as NH3.

2. Gaseous oxygen exists as a diatomic molecule with the chemical formula O2.

Products:

1. Nitrogen monoxide has the chemical formula of NO.

2. The chemical formula for water is H2O.

Therefore, the skeletal equation is written as:

NH3(g)+O2(g)→NO(g)+H2O(g)

Now count the number of each atom on each side of the equation to determine if the equation is balanced.

Reactants

1N atom

3H atoms

2O atoms

Products

1N atom

2H atoms

2O atoms

Begin by balancing the number of hydrogen atoms by adding a coefficient of 2 to NH3 and a coefficient of 3 to H2O. Next, balance the number of nitrogen atoms by adding a coefficient of 2 to NO. Now there are two oxygen atoms on the reactant's side and five oxygen atoms on the product's side of the reaction. Since only whole number coefficients should be used, all coefficients need to be increased by a factor of two to balance the oxygen atoms. Thus the coefficient for NH3 is 4, the coefficient for H2O is 6, and the coefficient for NO is 4. Finally, balance the oxygen atoms by adding a coefficient of 5 to O2. The balanced equation is:

4NH3(g)+5O2(g)→4NO(g)+6H2O(g)

Answer 2

The chemical equation is given as:

`4NH_3(g)+5O_2(g)\rightarrow 4NO(g)+6H_2O(g)`

Step-by-step explanation:

When gaseous ammonia reacts with gaseous oxygen it gives nitrogen monoxide gas and water vapors as product.

The chemical equation is given as:

`4NH_3(g)+5O_2(g)\rightarrow 4NO(g)+6H_2O(g)`

According to reaction, 4 moles of ammonia reacts with 5 moles of oxygen gas to give 4 moles of nitrogen monoxide gas and 6 moles of water vapor.