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What are equivalent resonating structures?

Joe Ford

What are equivalent resonating structures?

Equivalent Lewis structures are called resonance forms. They are used when there is more than one way to place double bonds and lone pairs on atoms. Resonance structures arise when there are more than one way to draw a Lewis dot diagram that satisfies the octet rule.

What is a resonance structure example?

A molecule or ion with such delocalized electrons is represented by several contributing structures (also called resonance structures or canonical forms). Such is the case for ozone (O3), an allotrope of oxygen with a V-shaped structure and an O–O–O angle of 117.5°.

How can you confirm that the resonance structures are equal for a molecule?

If the bond lengths are equal between pairs of atoms suspected of having resonance,then the molecule has equal Lewis resonance structures. If the molecule has a double bond, that bond can be moved about the molecule to giveequal Lewis resonance structures.

Does nh4+ have resonance structures?

None. Ammonium has no π bonds at all, and so it cannot have any resonance. Its pKa is about 9.4 . The pKa of ammonia is about 36 .

Does O2 have resonance structures?

O2 has a double bond in its normal form. That is O=O. There are no unpaired electrons in this case are there since there are 2 lone pairs on each oxygen. However 1 resonance structure would be O−O (result of homolytic cleavage of double bond) where each O is a free radical (a negatively charged one at that).

What is the chemical name of NO2?

Nitrogen Dioxide (NO2) is one of a group of highly reactive gases known as oxides of nitrogen or nitrogen oxides (NOx). Other nitrogen oxides include nitrous acid and nitric acid. NO2 is used as the indicator for the larger group of nitrogen oxides.

Why does NO2 not follow the octet rule?

Explanation: No2 molecule does not follow the octet rule. althogh hydrogen atom has an octet of electron ,the nitrogen atom has only seven electrons in its valence shell . NO is a stable compound it is very chemically reactive.