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10 questions from this quiz
Energy needed to break a chemical bond
BBB
Methane contains four C-H\text{C-H}C-H bonds
Enthalpy change to form gaseous atoms
473 kJ mol−1^{-1}−1
Greater bond energy = more stable
498 and 302 kJ mol−1^{-1}−1
ΔH∘\Delta H^{\circ}ΔH∘ = bonds broken - formed
Endothermic (requires energy)
Bond energies vary between molecules
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