Resonance Structures

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Hannah Faris 1C
Posts: 34
Joined: Fri Sep 28, 2018 12:18 am

Resonance Structures

Postby Hannah Faris 1C » Fri Oct 26, 2018 10:14 pm

Hi, I just wanted to ask what causes resonance structures, and how to know if a molecule has one? Just wanted to know!!

Thanks!

505211599
Posts: 60
Joined: Fri Sep 28, 2018 12:28 am

Re: Resonance Structures

Postby 505211599 » Fri Oct 26, 2018 11:26 pm

A resonance structure comes into play when there are 2 or more ways of writing out a Lewis structure for a molecule. We lost all structures because we can’t specifically pinpoint one correct structure.

Emilee Hosking 1D
Posts: 32
Joined: Fri Sep 28, 2018 12:17 am

Re: Resonance Structures

Postby Emilee Hosking 1D » Sun Oct 28, 2018 2:46 pm

What are some examples of resonance structures? Do they only occur in bonds between certain molecules?

Rhea Churi 4K
Posts: 62
Joined: Fri Sep 28, 2018 12:28 am

Re: Resonance Structures

Postby Rhea Churi 4K » Sun Oct 28, 2018 4:56 pm

Emilee Hosking 1D wrote:What are some examples of resonance structures? Do they only occur in bonds between certain molecules?


Resonance structures are used when one Lewis structure for a single molecule cannot fully describe the bonding that takes place. Polyatomic icons usually have resonance structures, like nitrate for example.

Daniel Lai
Posts: 65
Joined: Fri Sep 28, 2018 12:28 am

Re: Resonance Structures

Postby Daniel Lai » Sun Oct 28, 2018 4:57 pm

Ozone is a good example for resonance. The double bond can be on either side of the central oxygen, so there are two resonance structures.

Laura Gong 3H
Posts: 89
Joined: Fri Sep 28, 2018 12:26 am
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Re: Resonance Structures

Postby Laura Gong 3H » Mon Oct 29, 2018 1:52 pm

Most molecules or ions that have resonant structures usually have more than one oxygen. Some examples include SO42- and NO3- which we did in class and CO32-.


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