Question

Write a balanced equation for the preparation of (a) \(\mathrm{N}_{2}\) from \(\mathrm{Pb}\left(\mathrm{N}_{3}\right)_{2}\). (b) \(\mathrm{O}_{2}\) from \(\mathrm{O}_{3}\) (c) \(\mathrm{S}\) from \(\mathrm{H}_{2} \mathrm{~S}\).

Short answer

Question: Write the balanced chemical equations for the following reactions: (a) Preparation of N₂ from Pb(N₃)₂, (b) Preparation of O₂ from O₃, and (c) Preparation of S from H₂S. Answer: (a) 2 Pb(N₃)₂ → 3 N₂ + 2 Pb (b) 2 O₃ → 3 O₂ (c) 2 H₂S → S + 2 H₂

Step-by-step solution

Identify the reaction type

For this reaction, Pb(N₃)₂ is decomposed into N₂ gas and other products. This is a decomposition reaction.

Write the unbalanced chemical equation

The decomposition of Pb(N₃)₂ will produce N₂ gas and Pb. The unbalanced chemical equation is: Pb(N₃)₂ → N₂ + Pb

Balance the chemical equation

To balance the equation, we need to make sure that the number of atoms for each element is equal on both sides. The balanced chemical equation is: 2 Pb(N₃)₂ → 3 N₂ + 2 Pb (b) Preparation of O₂ from O₃

Identify the reaction type

In this reaction, O₃ is decomposed into O₂ gas. This is also a decomposition reaction.

Write the unbalanced chemical equation

The decomposition of O₃ will produce O₂ gas. The unbalanced chemical equation is: O₃ → O₂

Balance the chemical equation

To balance the equation, we need to make sure that the number of atoms for each element is equal on both sides. The balanced chemical equation is: 2 O₃ → 3 O₂ (c) Preparation of S from H₂S

Identify the reaction type

In this reaction, H₂S is decomposed into S and H₂ gas. This is a decomposition reaction.

Write the unbalanced chemical equation

The decomposition of H₂S will produce S and H₂ gas. The unbalanced chemical equation is: H₂S → S + H₂

Balance the chemical equation

To balance the equation, we need to make sure that the number of atoms for each element is equal on both sides. The balanced chemical equation is: 2 H₂S → S + 2 H₂