Sunday, February 27, 2011

Model

CH2CCl2
Here, you can see there is no central atom.  Therefore, this is a linear structure and the bond angles are 180°. 
There is a double bond between the two Carbon atoms, a single bond between the Carbon and Hydrogen, and a single bond between the Carbon and Chlorine.  Since the Hydrogen side of the molecule is positively charged and the Chlorine side is negatively charged, the molecule is POLAR.

4 comments:

  1. You correctly identified this molecule as a polar molecule. The hydrogen atoms have a positive charge to counter the Cl atoms which have a negative charge. Since one end is positive and the other is negative this is a polar molecule.
    -Kaleigh Crowell Period A

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  2. Accuracy of molecule:
    The drawing of this molecule is very accurate. The double bond between the two carbons is correctly shown as well as the appropriate markings indicating electronegativity and nature of the bonds using arrows point from the lower electronegativity value to the higher. (H=2.2 and C=2.5 so the arrow points towards C). The indication of the positive and negative sides are clear.
    -Kaleigh Crowell Period A

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  3. Accuracy: Your blog is correct the molecule is polar and it is and there is no central atomso it is a linear atom. Also, your blond angles are correct of 180 degrees. Also, the Lewis structure is correct.

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  4. Polarity: The polarity of the molceule is correct it is polar. The Hydrogen is positivly charged and the Chlorine side is negatively charged and that makes the molecule unsymmetrical, which makes it polar.

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