How is energy transferred between covalent bonds (polar and nonpolar) and what role does oxygen play in formation and breaking of bonds?

Question

aaronq · Answer

The question itself, "How is energy transferred between covalent bonds", doesn't really make much sense because energy is not transferred between them.

Oxygen plays the same role it would in what we previously discussed - in ionic bonds or intermolecular forces.

playa · Answer

so the role of oxygen doesnt change? the "bonds lead to stable molecules if they share electrons in such a way as to create a noble gas configuration for each atom" found it kind of talks about tranferring.

aaronq · Answer

well there is the inherent difference between ionic and covalent bonds - covalent bonds are when electrons are shared between the atoms.

playa · Answer

i found out that in covalent there is no tranfer but i think its differs for polar and nonpolar

aaronq · Answer

there is no transfer of electrons - that's for sure. This comes down to electronegativity differences ($\Delta EN$) between the participating atoms. 

When the $\Delta EN$>0.4, you get a separation of charge because of the ability for the atoms to attract electrons. This separation of charge is called an electric dipole moment.

aaronq · Answer

That is to say that the bond is polarized.

playa · Answer

so the separation of the charge makes it go to polar or non-polar right?

aaronq · Answer

yes, exactly.

playa · Answer

oh, i get it now so what you said earlier is how it is transferred

aaronq · Answer

Earlier in the other question? yes

playa · Answer

thanks

aaronq · Answer

no problem!