June 07, 2020, 03:22:26 AM
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Topic: VSEPR Help  (Read 121 times)

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Offline greenfieldhelp

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« on: May 18, 2020, 01:56:54 AM »
Hello. I'm not very good at VSEPR (don't fully understand it), and I was given a VSEPR assessment to complete by 5/20. I spent some time, did research, looked things up, and "completed it". However, this is a VERY big grade for my class, and it would mean everything if you guys could take a look at it, and correct whatever mistakes I made before I send it to my teacher.
If you can help, leave a comment below just stating what was wrong and how I can fix it. Or, leave a comment, or make fixes on the actual google doc (serious ones only please). Any help will be gladly appreciated!

Assessment: https://docs.google.com/document/d/10zZdXnucZyTPV7M0IWCF9ZpKQo4oNRX9RlX-A1KMULQ/edit

Offline AWK

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Re: VSEPR Help
« Reply #1 on: May 18, 2020, 05:31:23 AM »
2. Distortions do not always result only from the electronic structure. Sometimes the substituents have too much volume.
3. resonance delocalization is always associated with multiple bonds.
4. HI - for a linear diatomic molecule the angle is indeterminate (angle needs 3 points)
Carbonate anion - missing electrons in resonant structures (count electrons), also missing one resonant structure
Silicon dioxide - a linear triatomic molecule does not have a 109.5-degree angle, although in a crystal silicon atom is almost always surrounded by four oxygen atoms and then the angle is tetrahedral.

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