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#1 Isla from Banff

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Posted 09 November 2005 - 12:56 PM

Help me i'm so confused!!!!

Is hydrogen bonding strong or weak?

What are fullerenes?

Anyone have any ideas?

Thanks
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#2 Ally

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Posted 09 November 2005 - 01:16 PM

Fullerenes are just a newly discovered form of Carbon. The most common type of fullerene is the Buckminsterfullerene with the chemical forumula C60.

As for H Bonds, they are intermolecular forces in which a H atom is bonded to another electronegative atom (namely N, F, O). They are the strongest intermoecular force (stronger than Van der Waals forces) but weaker than covalent bonds.

#3 Isla from Banff

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Posted 09 November 2005 - 01:22 PM

thank you so much i was mega confused about that
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#4 Ally

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Posted 09 November 2005 - 11:07 PM

I should also add as a side note that Hydrogen bonds are strongest when the three atoms involved are arranged in a straight line.

#5 purplemonkey

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Posted 03 December 2005 - 04:00 PM

hydrogen bonds are the strongest intermolecular bond but covelant and ionic bonds are far stronger.

#6 rustler

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Posted 03 December 2005 - 10:07 PM

Covalent (discrete molecules)/Covalent networks/ ionic are the strongest then itt is hydrogen bonding, if the electronegativity difference is great enough there can be a permanent dipole where one atom becomes sligtly positive and the other slightly negative. Last it is Van der Waals forces, these are the weakest, if two molecules with Van Der Waals forces of attraction pass near to each other there can be a temporary in duced dipole, this lasts a short amount of time.
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