Please assist me with my practice question. The combustion of butane is shown by the following equation: 2C4H10 (l) + 13O2 (g) → 8CO2 (g) + 10H2O(g) Use the following data and the summing method to find the heat of reaction for the above equation. Note: Show all calculations, follow the rules of significant figures, and box your final answer. C(s) + O2 (g) → CO2 (g) + 393 kJ H2 (g) + ½O2 (g) → H2O(g) + 242 kJ 4C(s) + 5H2 (g) → C4H10 (g) + 125 kJ

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