Answer:
C₃H₈ + 5O₂ → 3CO₂ + 4H₂O.
Explanation:
To balance the equation, you should apply the law of conservation of mass for the equations.
The law of conservation of mass states that the no. of each atom is equal in both sides (reactants and products).
Hydrocarbon is burned in oxygen to produce CO₂ and H₂O.
So, the given equation is balanced as:
C₃H₈ + 5O₂ → 3CO₂ + 4H₂O.
that 1.0 mole of C₃H₈ is burned in 5.0 moles of O₂ to produce 3.0 moles of CO₂ and 4.0 moles of H₂O.
The no. of all atoms is the same in both of reactants and products side.
C (3), O (10), and H (8).
