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10 cards from this deck
Energy needed to break a chemical bond
BBB (e.g., BextC−HB_{ ext{C-H}}BextC−H, BextO−HB_{ ext{O-H}}BextO−H)
Enthalpy change to form gaseous atoms from element's std state
ΔHat∘\Delta H_{\text{at}}^{\circ}ΔHat∘
Higher bond energy = more stable, less reactive compound
The weakest bond in the molecule
ΔH∘\Delta H^{\circ}ΔH∘ = (bonds broken) - (bonds formed)
Requires energy (positive value)
Releases energy (negative value)
Not very accurate; bond energies are averages across compounds
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