Honors Chemistry Intermolecular Forces

Solubility

• like dissolves like = polar compounds dissolve polar compounds, nonpolar dissolves nonpolar

Intermolecular Forces

• related to the phase of matter and the MP/BP

Ions held together

ionic bonds

Metals atoms held together

metallic bonds

Network solids held together

covalent bonds

molecular solids held together

• intermolecular forces)weaker than bonds)

Dipole-Dipole Attraction

• made polar covalent molecules and happens when opposites attract

London Dispersion Forces

• made by nonpolar covalent molecules and happens electrons shift making temporary poles that attract, but are weak

Hydrogen Bonding

made by an H and N, O, F and happens when these molecules are covalent bonded making a large dipole, because the FON are highly electronegative

Tier List of Forces of Attraction(strongest→weak)

1. Ionic bonds, metallic solids, network solids

2. hydrogen bonding

3. dipole-dipole

4. London dispersion forces - large molecules

5. London dispersions forces - small molecules