Question

The decomposition of dinitrogen tetraoxide (N2O4) into nitrogen gas (N2) and oxygen gas (O2) is shown by which balanced chemical equation?

a. N2O4 → N2 + O2
b. N2 + 2O2 → N2O4This answer is incorrect.
c. N2O4 → N2 + 2O2
d. N2O4 + 2O2 → N2

Answer 1

C. N₂O₄ → N₂ + 2O₂

General Formulas and Concepts:

Chemistry - Reactions

• Reaction Prediction
• Balancing RxNs
• Decomposition Reactions: AB → A + B

Step-by-step explanation:

Step 1: Define

N₂O₄ decomposes into N₂ and O₂

Step 2: RxN

Unbalanced RxN: N₂O₄ → N₂ + O₂

• Need to balance the reactants and products

Balanced RxN: N₂O₄ → N₂ + 2O₂

• Need same number of oxygens (O) on both sides