# Question bc771

Dec 7, 2016

Look at the chemical species to predict the dipole moment or find the electronegativity difference among the bonding species.

#### Explanation:

Find species dipole moment:

Consider a graphic of $C O {H}_{2}$ where the dipoles between the bonded species are depicted by black arrrows $\to$, and the net dipole is shown below.

When there is a net dipole among the species, it will be a polar species .

As we can see from the dipole moment, the $C O {H}_{2}$ species is a polar one.

You could also use the Pauling scale of electronegativity to find the ΔEN between the bonded species:

Consider a molecule of Fluorine gas, ${F}_{2}$

the ΔEN = 3.98-3.98 = 0 in the $F - F$ bond.

The species is not polar.

See the link below for more information on the electronegativity difference:
https://socratic.org/questions/how-can-i-kiss-if-the-electronegativity-difference-is-ionic-polar-covalent-or-no347261