Polarity
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| What is Polarity? | The tendency of a molecule, or compound, to be attracted or repelled by electrical charges because of an asymmetrical arrangement of atoms around the nucleus.
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| How do you determine the polarity of a molecule? | First draw the Lewis Dot Structures. Then decide if the molecules are symmetric. A molecule is non-polar if the charge distribution is symmetric and it is polar if the charge distribution is not symmetric.
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| True or False: if a molecule has lone pairs it is polar. | True
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| What is Electronegativity? | The tendency of an atom in a molecule to attract the electrons in a chemical bond
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| True or False: Electronegativity increases when reading left to right of a periodic table. | True
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| True or False: Electronegativity increases when going down the periodic table. | False
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| Which has a higher Electronegativity Carbon or Oxygen? | Oxygen
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| What is Delta Negative? | Delta Negative: the pull of the most electronegative atom.
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| What is Delta Positive? | Delta Positive: the pull of the least electronegative atom
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| True or False: if a molecule is symmetric it is polar. | False
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| Which molecule is more polar Br2 or HBr? | HBr
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| Which molecule is more polar H2O or H2S? | H2O
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| Which molecule is more polar CCl4 or PCl3? | PCl3
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Created by:
EmilyKeilman
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