How do you tell if a bond is polar or nonpolar?

Answer 1

Well if it is an heteronuclear bond, i.e. the bond is NECESSARILY polar....

We assess the degree of polarity of a homonuclear bond #H-X#, by the difference in electronegativities of the atoms #H# and #X#.. And of course for an homonuclear bimolecule, e.g. #H_2#, #Li_2#, #C_2#, #X_2#, this difference in electronegativity is necessarily ZERO. Anyway look up tables of electronegatvities...
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Answer 2

A bond is polar if there is a significant difference in electronegativity between the atoms involved, resulting in an uneven distribution of electron density. A bond is nonpolar if the electronegativity difference between the atoms is negligible or nonexistent, resulting in an even distribution of electron density. You can determine the polarity of a bond by comparing the electronegativities of the atoms involved using a periodic table or electronegativity chart. If the electronegativity difference is greater than 0.4, the bond is typically considered polar. If the difference is less than 0.4, the bond is usually considered nonpolar.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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