2.4 Flashcards
1
Q
What is London dispersion force?
A
temporary dipole-dipole forces.
2
Q
What is dipole-dipole forces?
A
Polar molecules with a non polar molecule
3
Q
What is Hydrogen bond?
A
2 molecules bonded by hydrogen with very different electronegativity.
4
Q
Rank weakest to strongest.
A
London, dipole-dipole, hydrogen
5
Q
Is oil soluble in water and why?
A
No because oil is non polar and water is polar.
6
Q
What makes a molecule polar?
A
-Contains polar covalent bond
-asymmetrical ends
7
Q
How can you determine which way to draw a bond dipole?
A
Which atom has the highest EN.
8
Q
What kind of molecule is it if the EN is the same?
A
Nonpolar
9
Q
One EN stronger
A
Polar
10
Q
Can one bond be more polar than another? Why?
A
No, because polar is just saying whether or not electrons are being pulled.
