2.4 Molecular Polarity Flashcards
1
Q
What makes a molecule polar?
A
-opposite ends
-must contain a polar covalent bond
-asymmetrical ends (electrons pulled more to one end then the other instead of canceling out.
2
Q
How do two polar molecules attract? From weak to small.
A
Dipole-dipole interactions
London dispersion forces
Hydrogen bonds
3
Q
hydrophilic
A
water loving
4
Q
hydrophobic
A
water hating
5
Q
non polar
A
evenly distributed
hydrophobic
6
Q
polar
A
unevenly distributed
hydrophilic
7
Q
Water is not a good dissolver of oil mainly because
A
oil molecules are non-polar
8
Q
Which molecular attraction is stronger and more stable?
A
hydrogen bonds between alcohol molecules
9
Q
Hydrophobic
A
non-polar molecules
water avoidant
oil
10
Q
Hydrophilic
A
rubbing alcohol
polar molecules
water loving
