[maccha]

If someone could help me with this that would be great. If this is a tetrahedral structure and there's an O on top and bottom, and Cl's on each side, how could this molecule be polar? Wouldn't the dipoles cancel out?

[Dan]

there's an O on top and bottom, and Cl's on each side, how could this molecule be polar? Wouldn't the dipoles cancel out?

If the structure was square planar with similar substituents opposite each other then the dipoles would cancel, but since this is tetrahedral the substituents are not opposite each other - make a model, or consider that in the case of water you would not describe it as "there's an H on top and bottom, and lone pairs on each side"