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Bond Enthalpies
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Bond Enthalpies. The measure of the strength of a covalent bond The stronger the bond, the more tightly held together are the atoms. Chemical Bonds. Bond B reaking. Bond Making. In Chemical Reactions …. Breaking a bond requires energy Endothermic H is positive.
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Bond Enthalpies
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Presentation Transcript
Bond Enthalpies Themeasure of thestrength of a covalent bond Thestrongerthe bond, the more tightlyheldtogether are theatoms
Chemical Bonds Bond Breaking Bond Making
In ChemicalReactions… Breaking a bond requiresenergy Endothermic H is positive Making a bond releasesenergy Exothermic H isnegative
Using bond enthalpies Comparingstrengths of bonds Understandingstructure and bonding Calculationsinvolvingenthalpies of reactions Makingpredictionsregardingmechanism of reaction
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