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2.) how do scientists predict the polarity of molecules?
Pls help?!!

User Uhlen
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1 Answer

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Electronegativity.

If the difference in electronegativity for the atoms in a bond is greater than 0.4, we consider the bond polar. If the difference in electronegativity is less than 0.4, the bond is essentially nonpolar.

User Vivek Parekh
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