why is 1,2,2,3 tetrachloropropane polar?

[tdod]

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thanks in advance!

 

[Chrisz]

look at the second carbon, what is the angle between the two chlorine atoms in the second carbon? Is it 180 degrees opposing each other?

 

[techfan]

On the second carbon aren't the Chlorine atoms pointing away from each other (one into the page and the other out of the page)? Or since they are only 109.5 degrees from each other they still point "up"?