(Polar molecules, Non-polar molecules, etc.)
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For the molecule CH2Cl2 if I arrange the two H's opposite of each other and the Cl's opposite of each other the dipole moments cancel out making it nonpolar, but if I don't rearrange the H's and Cl's opposite of each other it's a polar molecule. How would I know which is the correct polarity?
The first instance with the Cl atoms arranged on opposite ends of the molecule would result in a nonpolar molecule as the Cl atoms, which are more electronegative, would have dipoles that cancel. However, when the Cl atoms are on the same side of the molecule, there is a net delta negative charge towards the Cl atoms, creating a dipole that makes the molecule polar.
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