## Test 2 Topics

$sp, sp^{2}, sp^{3}, dsp^{3}, d^{2}sp^{3}$

Alison Trinh 1E
Posts: 104
Joined: Thu Jul 25, 2019 12:16 am

### Test 2 Topics

Could someone please provide a list of what we should expect to be on Test 2? Thank you!

Bilal Pandit 1J
Posts: 98
Joined: Wed Sep 11, 2019 12:16 am

### Re: Test 2 Topics

I think he said it is going to cover bonding, VSEPR, and intermolecular interactions. It is not gonna include any content from the midterm, so basically from Outline 2D and onwards to where we are now basically.

Isabel Day 1D
Posts: 48
Joined: Fri Aug 09, 2019 12:15 am

### Re: Test 2 Topics

This is what one of the TA's said:

- Use VSEPR model to determine the shape of inorganic, organic, and small biological molecules, cations, and anions
- Use bond dipole moments and shape to determine if a molecule is polar or non-polar
- Use shape and polar or non-polar properties, identify intermolecular interactions/forces (H-bonding, dipole-dipole, dispersion)
- Explain why lone pairs are more likely to be found in certain locations around a central atom and how and why they affect the bond angles in a molecule, cation, or anion
- Distinguish sigma and pi bonds by their shapes, properties, and component orbitals

MKearney_4G
Posts: 50
Joined: Fri Aug 30, 2019 12:18 am

### Re: Test 2 Topics

Isabel Day 1D wrote:- Distinguish sigma and pi bonds by their shapes, properties, and component orbitals

Can somebody explain this?

Trent Yamamoto 2J
Posts: 111
Joined: Sat Aug 17, 2019 12:18 am

### Re: Test 2 Topics

Dr. Lavelle also explicitly said Hybridization would not be on Test 2

DHavo_1E
Posts: 118
Joined: Sat Aug 17, 2019 12:17 am

### Re: Test 2 Topics

Isabel Day 1D wrote:This is what one of the TA's said:

- Use VSEPR model to determine the shape of inorganic, organic, and small biological molecules, cations, and anions
- Use bond dipole moments and shape to determine if a molecule is polar or non-polar
- Use shape and polar or non-polar properties, identify intermolecular interactions/forces (H-bonding, dipole-dipole, dispersion)
- Explain why lone pairs are more likely to be found in certain locations around a central atom and how and why they affect the bond angles in a molecule, cation, or anion
- Distinguish sigma and pi bonds by their shapes, properties, and component orbitals

Hello!

Could you explain your fourth bullet point - why lone pairs are more likely to found in certain locations around a central atom? How do we know where lone they would most likely be? Thank you!

erica thompson 4I
Posts: 55
Joined: Wed Sep 18, 2019 12:21 am

### Re: Test 2 Topics

@DHavo_3H I think it has something to do with it being the most stable organization that requires the least amount of energy.

Patricia Cardenas
Posts: 103
Joined: Fri Aug 09, 2019 12:17 am

### Re: Test 2 Topics

My TA said it was not cumulative, so everything we have covered after the midterm.

ashwathinair
Posts: 113
Joined: Sat Aug 17, 2019 12:17 am

### Re: Test 2 Topics

I'm pretty sure it's everything we covered after the midterm up until but not including hybridization.

Sreyes_1C
Posts: 90
Joined: Fri Sep 28, 2018 12:19 am

### Re: Test 2 Topics

it is everything from the midterm onwards

NRodgers_1C
Posts: 54
Joined: Thu Jul 25, 2019 12:15 am

### Re: Test 2 Topics

So the recommended problem sets from the syllabus that we've covered for Test 2 it would be 2D, 3F, and 2E?