2.2.5-2.2.6 - Bond Polarity and Molecule Polarity

Question 1

In a covalent bond, which element will the shared pair of electrons be closer to?

Answer 1

the more electronegative element

Question 2

What does the polarity of a molecule depend on?

Answer 2

the polarity of the individual bonds and the orientation of the bonds with respect to each other in 3D space

Question 3

How could someone tell if a molecule is polar or not?

Answer 3

if the molecule is symmetrical and the dipole moments are all equal in magnitude, the molecule is non-polar

Question 4

In terms of dipole moments, what makes a molecule polar?

Answer 4

a non-zero dipole moment

Question 5

How do lone pairs play a role in determining whether a molecule is polar or not?

Answer 5

the give the molecule an uneven charge distribution and an overall non-zero dipole moment (shape is not symmetrical)

Question 6

What is the phrase that describes how substances dissolve one another?

Answer 6

like dissolves like