Lesson: Chapter 14 — Hydrocarbons and their derivatives

Putting the chapter together 2 of 3 Reset answers

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Question 2

What is the balanced equation for propane burning completely?

A C₃H₈ + 5O₂ → 3CO₂ + 4H₂O B C₃H₈ + 5O₂ → 3CO + 4H₂O C C₃H₈ + 4O₂ → 3CO₂ + 4H₂O D C₃H₈ + 3O₂ → 3CO₂ + 4H₂O

The right answer is the one marked above.

C₃H₈ + 5O₂ → 3CO₂ + 4H₂O. The right side has 6 + 4 = 10 oxygen atoms, so 5 O₂ are needed; CO forms only when burning is incomplete.

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