Sapling #17

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Anil Chaganti 3L
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Joined: Wed Sep 30, 2020 9:52 pm

Sapling #17

Postby Anil Chaganti 3L » Sun Nov 29, 2020 12:47 pm

On Sapling #17 (Draw the three possible structures of C3H4), why are the three structures not resonance of one another? Do they not contribute equally to chemical bonding?

Joseph Hsing 2C
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Joined: Wed Sep 30, 2020 9:42 pm

Re: Sapling #17

Postby Joseph Hsing 2C » Sun Nov 29, 2020 1:08 pm

The 3 possible structures of C3H4 include one ring structure and two linear structures. Since all three of these have different atom connectivities, we cannot say they are resonance structures of each other.

Ethan Goode 2H
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Joined: Wed Sep 30, 2020 9:51 pm

Re: Sapling #17

Postby Ethan Goode 2H » Sun Nov 29, 2020 1:11 pm

If you draw out the three models, there is no way to switch around bond type between any of the atoms on this molecule, so there are not any resonance structures.

AlyssaMaynard1C
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Joined: Fri Mar 06, 2020 12:15 am

Re: Sapling #17

Postby AlyssaMaynard1C » Sun Nov 29, 2020 1:12 pm

Anil Chaganti 2C wrote:On Sapling #17 (Draw the three possible structures of C3H4), why are the three structures not resonance of one another? Do they not contribute equally to chemical bonding?

All three structures don't have resonance because they are each different shapes that occur naturally, so they can't be combined to make a hybrid.

Jaclyn Schwartz 1I
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Joined: Wed Sep 30, 2020 9:45 pm

Re: Sapling #17

Postby Jaclyn Schwartz 1I » Sun Nov 29, 2020 11:28 pm

Resonance structures are structures that are structurally similar, usually just multiple options. An example is CO3 2-, all similarly structured but with different spots for the double bond. In question 17, they all have the same molecular formula but have different structures so they aren't resonance. They're actually isomers.
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