2.24 - Non-Polar and Polar Molecules

Question 1

What is a dipole?

Answer 1

A separation of charge

Question 2

What causes charge to become separated?

Answer 2

The difference in electronegativities of the two atoms involed in the bond

Question 3

What does the overall dipole of a molecule depend on?

Answer 3

Its shape

Question 4

If the individual dipoles cancel each other out, what is the molecule?

Answer 4

Non-polar

Question 5

If the individual dipoles reinforce each other, what is the molecule?

Answer 5

Polar

Question 6

What is a polar molecule?

Answer 6

A molecule that has an overall charge seperation

Question 7

Is carbon dioxide polar or non-polar?

Answer 7

Non-polar

Question 8

Why?

Answer 8

Because both C=O bonds are polar, but they are at 180 degrees to each other, so the dipoles cancel out

Question 9

Is water polar or non-polar?

Answer 9

Polar

Question 10

Why?

Answer 10

Because both O-H bonds are polar, and act in the same general direction, so they reinforce each other, making the compound polar