[cho_reunited]

I thought I understood this stuff, but apparently not, according to the results of my test 

Are the following molecules IONIC, POLAR COVALENT, or NON-POLAR COVALENT? (I only have those 3 choices)
1) CCl4
2) CO2

Thanks, much appreciated!

[sjb]

I thought I understood this stuff, but apparently not, according to the results of my test 

Are the following molecules IONIC, POLAR COVALENT, or NON-POLAR COVALENT? (I only have those 3 choices)
1) CCl4
2) CO2

Thanks, much appreciated!

What are your definitions of these terms?

[cho_reunited]

I'm not quite sure what my teacher meant by these, because in class we learned that symmetrical molecules are non-polar, and that molecules without symmetry are polar.

Then he threw all those terms together on the test and messed everyone up.

[Schrödinger]

Do you know the structures of these compounds? The geometry?