Question

Which equation represents a decomposition reaction?

a. H₂SO₄+2NaOH→Na₂SO₄+2H₂O
b.6NaNO₃→6NaNO₂+3O₂
c. 2C₈H₁₈+25O₂→16CO₂+18H₂O
d. 4P + 5O₂→2P₂O₅

Answer 1

The equation that represents a decomposition reaction is 2C₈H₁₈+25O₂→16CO₂+18H₂O.

Step-by-step explanation:

A decomposition reaction is a type of chemical reaction where a compound breaks down into simpler substances. The equation that represents a decomposition reaction is option c: 2C₈H₁₈+25O₂→16CO₂+18H₂O. In this reaction, the compound C₈H₁₈ (octane) breaks down into carbon dioxide (CO₂) and water (H₂O).