HYDROGEN BONDS

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What is hydrogen bonding?

A hard form of dipole-dipole forces that only occur when bonding to small, highly electronegative particles

What are the THREE main + one extra electronegative molecules involved in hydrogen bonding? (hint: F.O.N)

1. Fluorine

2. Oxygen

3. Nitrogen

4. Chlorine

Is hydrogen bonding the strongest intermolecular force??

Yes

What other force does hydrogen bonding need to occur?

It needs permanent dipole-dipole forces

What bond does a hydrogen have when it bonds to one of the four electronegative elements? (hint: electrons are shared)

Covalent bonding

Where does the attraction in hydrogen bonding come from?

The attraction is between oppositely charged molecules

What is the lone electron in a hydrogen bond attracted to? (hint: +)

The exposed area of the nucleus’ positive charge (bc it has a proton)

How does the strength of the hydrogen bond affect the boiling point?

Stronger bonds = higher boiling point

When hydrogen is bonded to fluorine (HF), is hydrogen bonding the only existent intermolecular force?

No. All three intermolecular forces exist between HF (hydrogen bonding, dipole-dipole, dispersion forces)