Honors Chemistry
Unit 3: Chemical Bonding and Nomenclature
Introduction:
The elements we have been studying are often called “the building blocks of the Universe”.
Elements in their pure form, however, have a somewhat limited usefulness. It is only when you start
putting the building blocks together in varying patterns that chemistry becomes really interesting.
As is the case with all of nature, the putting together of these blocks is governed by certain rules
which must be understood before chemistry, as a whole, can be understood.
It has taken almost two centuries of diligent work to uncover what we not know about the rules
of chemical bonding. The approximately two million compounds that we have been able to synthesize
so far, however, demonstrates a fair grasp of these rules, which we will discuss.
This unit concerns itself mainly with the rules governing the joining of two or more atoms to
form a chemical bond. Since chemical bonding lies at the very heart of the study of chemistry it is a very
important unit. Learn it well! We will cover two chapters in this unit: chapters 5 and 10. There is a lot
of information so you must work in and outside of class to stay on top of the information.
Major Objectives: When you have completed this unit you will be able to:
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Define ionic, covalent, metallic, and coordinate covalent bonding and explain the differences
between them
Write the correct formula for a compound, given the scientific name and a table of names,
formulas, and charges of most common ions.
Write the correct name for a compound given its formula and a table of names, formulas, and
charges of most common ions.
Construct a Lewis (electron-dot) structure of any simple compound given its formula.
Predict the most probable type of bonding in a compound, given its formula and a table of
electronegativities.
Calculate the molecular mass of a compound, given its formula.
Use the VSEPR theory to predict the shapes and geometry of compounds
Name and write formulas of acids
Use the geometry of a molecule to predict its polarity
Required work for Unit 5
Vocabulary: When you have finished this unit, you will be able to define and to use the following words
and phrases as part of your working chemistry vocabulary:
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Ionic compound
Ionic bond
Chemical formula
Formula unit
Valence electron
Lewis dot structures
Monatomic ions
Polyatomic ions
Molecular compound
Covalent bond
Molecule
Diatomic molecule
Molecular formula
Single covalent bond
Structural formula
Unshared pair
Double covalent bond
Triple covalent bond
Bond dissociation energy
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Resonance structure
Binary compound
Coordinate covalent bond
Molecular/ molar mass
Law of definite proportions
Law of multiple proportions
Hydrates
Acid
Bent
Bonding theory
Bonding pair
Linear
Molecular geometry
Tetrahedral
Trigonal planar
Trigonal pyramidal
VSEPR theory
Assigned reading: Be sure to read the required reading in your textbook: Pearson Chemistry, Indiana
ed.
1. Chapter 5: P 127 – 152
2. Chapter 10: P325 – 348
Assignments:
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Introduction to Ionic Bonding worksheet
Lets practice: Binary Ionic compounds worksheet
Make ‘em Happy worksheet
Hodgepodge Homework sheet
Lewis Structure worksheet
Naming Covalent Compounds worksheet
VSEPR theory worksheet
Naming acids
Labs:
1. Covalent Bonding in Molecular Compounds/VSEPR theory