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what is bond order User: bond order in terms of bond energy User: bond energy
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Updated 1/24/2011 8:35:10 PM
1 Answer/Comment
Bond order is the number of chemical bonds between a pair of atoms. For example, in diatomic nitrogen N=N the bond order is 3, while in acetylene H-C=C-H the bond order between the two carbon atoms is also 3, and the C-H bond order is 1. Bond order gives an indication to the stability of a bond. In a more advanced context, bond order need not be an integer. A good example of this is bonds between carbon in the molecule benzene, where the delocalized molecular orbitals contain 6 pi electrons over six carbons essentially yielding half a pi bond. Together with the sigma bond the bond order is 1.5. Furthermore, bond orders of 1.0, for example, can arise under complex scenarios and essentially refer to bond strength relative to bonds with order 1.

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Added 1/24/2011 8:35:10 PM
what is bond energy User: why hydrogen bonding help ice cube float
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Updated 1/24/2011 8:33:51 PM
1 Answer/Comment
In chemistry, bond energy (E) is a measure of bond strength in a chemical bond. It is the heat required to break Avogadro's number of molecules into their individual atoms. For example, the carbon-hydrogen bond energy in methane E(C–H) is the enthalpy change involved with breaking up one molecule of methane into a carbon atom and 4 hydrogen radicals divided by 0.5.

Bond energy (E) should not be confused with bond dissociation energy.

Added 1/24/2011 8:33:51 PM
Combination reaction
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Updated 35 days ago|12/13/2016 7:38:57 PM
1 Answer/Comment
Combination reaction is a reaction where two or more elements or compounds (reactants) combine to form a single compound (product).
Added 36 days ago|12/13/2016 7:18:39 PM
This answer has been confirmed as correct, not copied, and helpful.
Confirmed by yumdrea [12/13/2016 7:38:58 PM]
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