Question

Write balanced chemical reactions for the following a) Ammonia, NH3, reacts with nitrogen oxide, NO, to produce water and nitrogen gas. b) Oxygen gas reacts with hydrogen sulfide, H2S, to produce water and sulfur dioxide, SO2.

Answer 1

Answer:

a) 4NH₃ + 6NO ⇄ 6H₂O + 5N₂

b) 2H₂S + 3O₂ ⇄ 2H₂O + 2SO₂

Explanation:

Write the equation as given then modify accordingly.

a) NH3 + NO ⇄ H2O + N2

make sure that the amount of each element is equal in both side (reactants and products)

Hydrogen is the different one thus to make H egal we multiply by 2 in the reactant and by 3 in the product to make it 6. Thus the all reaction is multiply accordingly.

2NH3 + 3NO ⇄ 3H2O +  5/2N2

to remove the fraction, multiply both side by 2.

4NH3 + 6NO ⇄ 6H2O + 5N2

b) O2 + H2S ⇄ H2O + SO2

The Oxygen are not the same, so we make them equal to 6 in both side. in the reactant we have to multiply by 3. In the product we have to get 2 for water and 2 for SO2 to have a total of 6 O.

we modify the reaction accordingly to equal elements in both side.

2H2S + 3O2 ⇄ 2H2O + 2SO2