hydrogen bonds Flashcards
How strong are hydrogen bonds
is the strongest form of intermolecular bonding
Intermolecular bonds are bonds between molecules
Hydrogen bonding is a type of ……………………….. bonding
permanent dipole – permanent dipole
For hydrogen bonding to take place the following is needed
A species which has an O, N or F (very electronegative) atom bonded to a hydrogen
When hydrogen is covalently bonded to an O, N or F, the bond becomes highly polarised
The H becomes so δ+ charged that it can form a bond with the lone pair of an O, N or F atom in another molecule
Make sure to use a dashed, straight line when drawing your intermolecular forces!Hydrogen bonds should start at the lone pair and go right up to the delta positive atom - it must be really clear where your H bond starts and ends.
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