Final answer:
After canceling out the species that appear on both sides of the given reactions, the net reaction simplifies to: 3 C(s) + 4 H₂(g) → C₃H₈(g) + 5 O₂(g).
Step-by-step explanation:
The net reaction for the given reaction series can be obtained by adding all the reactions together and cancelling out the species that appear on both sides of the reactants and products. After the cancellation, the remaining species represent the net reaction.
The provided reactions are:
1. 3 CO₂(g) + 4 H₂O(g) → C₃H₈(g) + 5 O₂(g)
2. 3 C(s) + 3 O₂(g) → 3 CO₂(g)
3. 4 H₂(g) + 2 O₂(g) → 4 H₂O(g)
When you combine these equations, the 3 CO₂ on the product side of the second reaction will cancel with the 3 CO₂ on the reactant side of the first reaction. Similarly, the 4 H₂O on the product side of the third reaction will cancel with the 4 H₂O on the reactant side of the first reaction.
The net reaction then simplifies to:
3 C(s) + 4 H₂(g) → C₃H₈(g) + 5 O₂(g)