What is the difference between a polar covalent bond and a nonpolar covalent bond?

Answer 1

Polar covalent bonds share electrons unequally, nonpolar covalent bonds share electrons equally.

Because all atoms have different electronegativities, the only situation in which you would have a nonpolar covalent bond is when two of the same atom are bound together. The electronegativity of the atoms involved in a covalent bond determines which will have more pull on the electrons shared between them.

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Answer 2

Wyatt Atkins

The distribution of electrons is the primary distinction between a polar and a nonpolar covalent bond. In a polar covalent bond, electrons are distributed unevenly between two atoms because of variations in electronegativity, which leaves one atom with a partial positive charge and the other with a partial negative charge. In a nonpolar covalent bond, electrons are distributed equally between two atoms, leaving neither atom with a net charge.

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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.