5.3 Flashcards
What is london dispersion force?
A temporary attraction between molecules.
What is dipole-dipole attraction?
An attraction of polar molecules.
What is hydrogen bond attraction?
A stronger dipole-dipole attraction with certain atoms.
Rank the 3 intermolecular attraction types from most strong to least:
Hydrogen bond
Dipole-dipole
LDF
What atoms can make a hydrogen bond?
Florine, Oxygen, Hydrogen, and Nitrogen
What are the two factors that make a molecule polar?
Polar covalent bond and asymmetrical pull of electrons.
What does polar mean?
Uneven relationship.
What intermolecular bond do all molecules have?
LDF
2 atoms in a molecule have uneven EN and are asymmetrical. Are they polar or non polar?
Polar
2 atoms in a molecule have even EN. Are they polar or non polar?
Non polar
2 atoms in a molecule have uneven EN and are symmetrical. Are they polar or non polar?
Non polar
2 molecules are polar with H-O atoms. What intermolecular attraction do they have?
Hydrogen bond.
2 molecules are polar with H-C atoms. What intermolecular attraction do they have?
Dipole-dipole
2 molecules are non polar with H-F atoms. What intermolecular attraction do they have?
London Dispersion Force
A molecule has H and O atoms. Is it soluble in water?
Yes
A molecule has H and C atoms. Is it soluble in water?
No
