1. Chapter 1: Bonding and Molecular Structure CH 1-2 Hybridization & Molecular Geometry
Chemical formula and Lewis Structures
Constitutional Isomers
Covalent bonds (sigma and pi)
Hybridization
Molecular geometry
Formal Charge
Dash formula, condensed formula, zig-zag formula

2. Covalent Bonds, Hybridization, and Molecular Geometry – sp3
Sp3 Hybridization at Carbon: -Four Sigma (s) Covalent Bonds -Tetrahedral molecular geometry
Ethane

3. Covalent Bonds, Hybridization, and Molecular Geometry – sp2
Sp2 Hybridization at Carbon: -Three Sigma (s) and one Pi (p) Covalent Bonds -Trigonal planar molecular geometry
Ethylene

4. Covalent Bonds, Hybridization, and Molecular Geometry – sp
Sp Hybridization at Carbon: -Two Sigma (s) and two Pi (p) Covalent Bonds -Linear molecular geometry
Ethyne

5. Covalent Bonds, Hybridization, and Molecular Geometrysp
sp3 sp
sp2
What is the Hybridization at each carbon atom?
How many Sigma (s) Covalent Bonds are there?
What is the Molecular Geometry at each carbon atom?
How many Pi (p) Covalent Bonds are there?
What is the total # of Covalent Bonds in this molecule?

6. Determining Molecular Geometry at Oxygen Atoms
The “O” in methanol has:
_____ Sigma (s) Covalent Bonds 2
_____ Lone Pairs 2
_____ molecular geometry
bent
sp3
_____ hybridization

7. Determining Molecular Geometry at Oxygen Atoms
The “O” in acetone has:
_____ Sigma (s) Covalent Bonds 1
_____ Lone Pairs 2
_____ molecular geometry
linear
sp2
_____ hybridization