Polarisation

Question 1

what is a dipole?

Answer 1

the difference in charge between two atoms caused by a shift in electron density in the bond

Question 2

what happens when charge is distributed unevenly over a molecule?

Answer 2

the molecule has a permanent dipole

Question 3

what does a permanent dipole create?

Answer 3

a polar molecule

Question 4

what type of molecule is created when the polar bonds are symmetrical?

Answer 4

a non-polar molecule as the dipoles cancel each other out therefore the molecule has no permanent dipole
e.g. CO2

Question 5

what type of molecule is created when the polar bonds are pointing in the same direction?

Answer 5

a polar molecule as the dipoles don’t cancel each other out
e.g. H2O