Intermolecular Bonds/Forces

Question 1

Intramolecular

Answer 1

a bond within a molecule

Question 2

Intermolecular

Answer 2

a bond between molecules

Question 3

Intermolecular Force: dipole - dipole

Answer 3

bond between 2 identical polar molecules

Question 4

Intermolecular force: hydrogen bonding

Answer 4

a bond between a hydrogen atom of one molecule (polar molecule) and a highly electronegative atom ex. (F, O, N) of another molecule (ex. HF, H2O, and NH3)

Question 5

Hydrogen Bonding

Answer 5

• strong bonds (strongest intermolecular force)
• reasons why water has a high melting point/high boiling point for it’s size
• the strongest the intermolecular force the higher the boilng point

Question 6

VAN der WAALS Forces

Answer 6

• attraction between nonpolar molecules
• weak force of attraction so low MP, low BP
• reason why non polar molecules exist as liquids at low temp and high pressure
• most effective when molecules are close such as between molecules with more electrons and a larger molecular mass
• the stronger the VAN der Waals force the higher the melting/boiling point of the substance

Question 7

Molecule/Ion Attraction

Answer 7

attraction between a + or - ion (ionic compound) and the opposite charged ends of a solvent molecule (a liquid in which a substance dissolves )