Mini-Quiz: Polar and Non-Polar Molecules

1. Why is H2O a polar molecule?

   It will freeze at polar temperaturesSorry, not correct. Try another button. Since Hydrogen is polar and so is Oxygen, then the combination is also polarGood try, but not right. Select another answer. The molecule has positive (+) charges on one side and negative (-) charges on the otherThat is correct. You are becoming a Chemistry Champion.

2. Why isn't a molecule like CO2 a polar molecule?

   Its configuration is symmetrical with negative (-) charges on both endsCorrect. You are doing a good job! CO2 is a polar moleculeOops! Wrong answer. Re-read the question and try again. It only consists of three atomsSorry, not correct. Try another button.

3. What happens if you mix two liquids, where each consists of polar molecules, and the liquids don't react chemically?

   The combination turns to a solid substanceGood try, but not right. Select another answer. The combination becomes a solutionThat is correct. You are becoming a Chemistry Champion. Such liquids will not mixOops! Wrong answer. Re-read the question and try again.

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