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yourown definition of molecular
polarity


Sagot :

Answer:

Polarity is caused by the difference in electronegativity (EN) of a compound. For example, water, H2O, is polar because oxygen's EN is much higher than hydrogens. Therefore, the electrons spend more time around the oxygen and less time around the hydrogen causing a slightly positive pole at the hydrogens and a slightly negative at the oxygen. Most polar molecules are not symmetrical (like water). Non-polar molecules like CH4 (methane) do not have poles.

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