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NO2^-, the nitrite anion, is made with covalent bonds between N and O. It is polar. When combined with a metal atom, it forms an ionic bond, such as in NaNO2.

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7y ago
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6mo ago

NO2- has a polar covalent bond due to the difference in electronegativity between nitrogen and oxygen. This creates an unequal sharing of electrons, resulting in a polar molecule.

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14y ago

polar covalent

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Q: Is NO2- a polar or nonpolar covalent bond or ionic?
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What is the increasing ordor of electronegativity in ionic bond and polar covalent bond and non polar covalent bond?

The increasing order of electronegativity in bonds is lowest for nonpolar covalent bonds, followed by polar covalent bonds, and highest for ionic bonds. In nonpolar covalent bonds, the electronegativity difference between atoms is minimal, whereas in polar covalent bonds, there is a moderate electronegativity difference leading to partial charges. Ionic bonds have the highest electronegativity difference, resulting in complete transfer of electrons.


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If two covalently bonded atoms are identical, the bond is identified as a nonpolar covalent bond.


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