(©2002, François G. Amar, All rights reserved)  

Chemistry 121 (Section 003) -- General Chemistry

Dr. François Amar's Section (MWF 11AM)

 

Summary for Week 3 

Reading:

For this week: BLB Chapter 2.5-2.7; start of Chapter 3

A look ahead: BLB Chapter 3  

Homework problems:

Chapter 2: 33, 35, 37, 39, 42, 46, 49, 52, 64

Chapter 3: 3, 5, 9, 12, 17, 20, 23, 27, 30, 37

Key concepts:

End of chapter 2:

molecular compounds

ions and ionic compounds

atomic ions: the common charge states

naming ionic compounds

cations and anions (positive and negative ions)

acids and their names

naming molecular compounds

Into Chapter 3

chemical reaction equations and balancing

stoichiometry

atomic and molecular weights

percentage composition by mass

amount of stuff: weighing and counting

the mole concept 

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