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Ch.9 - Bonding & Molecular StructureWorksheetSee all chapters
All Chapters
Ch.1 - Intro to General Chemistry
Ch.2 - Atoms & Elements
Ch.3 - Chemical Reactions
BONUS: Lab Techniques and Procedures
BONUS: Mathematical Operations and Functions
Ch.4 - Chemical Quantities & Aqueous Reactions
Ch.5 - Gases
Ch.6 - Thermochemistry
Ch.7 - Quantum Mechanics
Ch.8 - Periodic Properties of the Elements
Ch.9 - Bonding & Molecular Structure
Ch.10 - Molecular Shapes & Valence Bond Theory
Ch.11 - Liquids, Solids & Intermolecular Forces
Ch.12 - Solutions
Ch.13 - Chemical Kinetics
Ch.14 - Chemical Equilibrium
Ch.15 - Acid and Base Equilibrium
Ch.16 - Aqueous Equilibrium
Ch. 17 - Chemical Thermodynamics
Ch.18 - Electrochemistry
Ch.19 - Nuclear Chemistry
Ch.20 - Organic Chemistry
Ch.22 - Chemistry of the Nonmetals
Ch.23 - Transition Metals and Coordination Compounds
Sections
Lewis Dot Symbols
Chemical Bonds
Dipole Moment
Octet Rule
Formal Charge
Lewis Dot Structures: Neutral Compounds
Lewis Dot Structures: Sigma & Pi Bonds
Lewis Dot Structures: Ions
Lewis Dot Structures: Exceptions
Lewis Dot Structures: Acids
Resonance Structures
Average Bond Order
Bond Energy
Coulomb's Law
Lattice Energy
Born Haber Cycle

Sigma Bonds directly connect element together, while Pi Bonds provide insulation and protection for those bonds. 

Sigma and Pi Bonds

Concept #1: Lewis Dot Structures: Sigma & Pi Bonds

Example #1: Which of the following statements best describes the relationship between bond length and bond strength for a series of compounds involving bonds between the same two atoms?

Practice: How many pi bonds does the following molecule contain? 


Practice: How many sigma bonds does the following molecule contain?

Practice: Which has greater bond strength between the carbon–carbon bond.

C2Cl2  vs.  C2Cl6

Practice: Draw the total number of sigma and pi bonds of the sulfur trioxide molecule, SO3.