Use the bond energies provided to calculate LaTeX: \DeltaΔH for: 2 C2H2 + 5 O2 > 4 CO2 + 2 H2O C=C = 960kJ O=O 498 kJ C-H 412 kJ C=O 743 kJ O-H 463 kJ

because natural gas is colorless, odorless, and tasteless, distributors add mercaptan (a chemical that smells like sulfur) to give natural gas a distinct unpleasant odor (it smells like rotten eggs). they locate the types of rock that are likely to contain natural gas deposits.