determining dipole moment

[Chiara Berruto 1K]

What is the easiest way to identify dipole interactions to be able to determine the polarity of a molecule?

[Betty Wolkeba section 1L]

I like to look at the electronegativities of the atoms in the molecule to help. For example, with HCL, Cl is more negative than H so the covalent bond makes electrons to be pulled closer to the CL, making it more partial negative, and H as a result, a partial positive.

[Yadira Flores 1G]

Yes looking at the difference in electronegativity will help to determine which which, if any, the dipole moment will move towards as well as if they will cancel. If they do, then it's non-polar and if they don't it's polar.
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[kellyz_1C]

You have to take in the electronegativities of the atoms and the structure of the molecule to see which dipole vectors cancel out and which do not.