Final answer:
The balanced equation is CH₄ → C₃H₈ + H₂ with coefficients of 3, 1, 2 respectively.
Step-by-step explanation:
The balanced equation is CH₄ → C₃H₈ + H₂ with coefficients of 3, 1, 2 respectively. The equation is balanced because the number of atoms of each element is the same on both sides of the equation.