Bond Funds

How do you count pi bonds on ring structures?

My teacher has given us several ring compounds and we have to determine the number of pi bonds. One ring has two double bonds and within the ring there are an oxygen with two lone pairs and a nitrogen with one lone pair. Oxygen is attached by single bonds on the ring while nitrogen is a attached by one single bond and one double bond. Does that make any sense? So its a cyclopentene but two of the carbons have been switched out with an oxygen and a nitrogen. Please HELP!

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Be the first to comment - What do you think?  Posted by admin - April 20, 2010 at 2:43 pm

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How are hydrogen bonds different from covalent bonds?

Hydrogen bonds are weaker than covalent bonds and form between partially charged atoms or molecules.

The atoms in hydrogen bonds have valence electrons; the atoms in covalent bonds have valence spaces.

The compounds that result from hydrogen bonds contain carbon; those that result from covalent bonds do not.

Covalent bonds are organic; hydrogen bonds are inorganic.


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1 comment - What do you think?  Posted by admin - April 19, 2010 at 2:40 pm

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If mortgage bonds are secured corporate bonds then how did the subprime bubble happen?

I am trying to understand secure bonds and I know mortgage bonds are secured bonds,if that is the case,even if they default ,the investor should get the prinicipal back.Can someone give an explanation of this works.


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2 comments - What do you think?  Posted by admin - April 18, 2010 at 5:18 pm

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