dire matters
The 3 main states of matter
Liquid, solid, and gas
Only IMF present in non-polar covalent molecules
Intramolecular bonds made between two non-metal atoms
Covalent bonds
Intramolecular bonds made between a non-metal and a metal
Ionic bond
What is the difference between intramolecular forces and IMFs?
Intramoles. are between atoms, and IMFs are between molecules
What has the strongest IMFs out of the 3 states of matter?
Solids, as they are bundled close together
Fluorine, Oxygen, and Nitrogen
IMF between two polar molecules; negative end of one aligned with positive end of another
Are intramolecular forces stronger than inter-molecular forces?
Yes, as they bond between atoms, and the latter bonds between molecules
What happens when a molecule has an equal # of elections on each side?
It becomes a non-polar molecule
What is the strongest IMF found in polar molecules?
Hydrogen bonds
Properties changed by IMFs: For vapor pressure, a higher or lower IMF means...
Less vapor pressure or higher vapor pressure, respectively
What is the weakest IMF found in polar molecules?
Can multiple unique IMFs be present in the same polar molecule?
Yes, as dispersion, dipole-dipole, and H-bonds can be in the same molecule, like water
Name the ability for electrons to become non-symmetrical
Polarziability
Properties changed by IMFs: threshold temperature when enough energy can break IMF bonds
Melting/Boiling Point
Properties changed by IMFs: In a liquid's surface tension, a higher or lower IMF means...
It has a stronger or weaker surface tension.
In dipole-dipole IMFs, how does a greater difference in electronegativity affect the dipole's strength?
A greater diff. means a stronger dipole.
Is sugar or salt more soluble in water?
Salt, as its ion allows for easier attraction to water's H-bonds
What causes a molecule to experience a temporary dipole?
When the electrons in it disperse in a non-equal arrangement; one side has more electrons than the other
Properties changed by IMFs: what determines a substance's ability to dissolve in a solvent?
The strength of the IMFs present in each the substance and molecule
Properties changed by IMFs: In a liquid's viscosity, a higher/lower IMF means...
It will flow less easily, or will flow easier
If IMFs didn't exist, would every solid or liquid remain as it was?
No, as IMFs are responsible for bringing molecules closer to each other, giving everything its shape
True/False: As LDF molecules get bigger, their LDF strength and attraction also grows with it
Correct, as they gain a higher chance of polarizability.
True or False: non-polar molecules can't interact with other polar or non-polar moles
False, as LDFs allow the non-polar molecules to still interact with other moles, only at set moments