Covalent Bonding and Molecular Geometry
This chapter covers the formation and naming of covalent compounds. This includes drawing Lewis dot structures, predicting molecular geometry through the VSEPR theory, and the rules for naming covalent compounds.
Covalent Bonding Powerpoint Lecture
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Purpose: This is a brief Powerpoint lecture that describes the difference between covalent and other types of chemical bonds, including electronegativity difference. The rules of covalent nomenclature are also covered.
Essential Concepts: Covalent bonding, covalent compounds, electronegativity, VSEPR, Lewis dot structures.
Chemical Bonding Notes Outline
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Purpose: This is a fill-in-the-blank style notes outline for students to complete as you complete the accompanying Powerpoint lecture. Each slide has a set of questions, fill-in-the-blanks, or tables that students fill in based on the information given. This is a good aid for students who struggle with taking notes freehand.
Essential Concepts: Covalent bonding, covalent compounds, electronegativity, VSEPR, Lewis dot structures.
Chemthink - Covalent Bonding and Nomenclature
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Purpose: This Chemthink module covers the formation of covalent bonds and how covalent compounds are named through the use of prefixes.
Essential concepts: Covalent bonding, electronegativity, covalent nomenclature.
Chemthink - Molecular Shapes
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Purpose: This Chemthink module helps students learn how to construct Lewis dot structures for covalent compounds and predict their molecular shapes with the VSEPR theory.
Essential concepts: Covalent bonding, Lewis dot structures, molecular geometry, VSEPR.
Electronegativity Difference and Covalent Compounds
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Purpose: This worksheet instructs students in the use of electronegativity difference to identify ionic, nonpolar covalent, and polar covalent compounds.
Essential concepts: Electronegativity, nonpolar covalent bond, polar covalent bond, ionic bond.
Lewis Dot Structures Worksheet
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Purpose: The creation of Lewis Dot structures is a helpful first step in predicting the molecular shape made by a covalent compound. In this worksheet, students will be guided in making Lewis Dot structures both for individual atoms and for molecules.
Essential concepts: Covalent compound, molecular geometry, Lewis Dot structures
VSEPR Theory and Molecular Geometry
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Purpose: This worksheet guides students through the use of the VSEPR theory to predict the 3-dimensional shape made by a covalently-bonded molecule. This worksheet only covers the simpler and more common molecular shapes, including linear, bent, trigonal planar, trigonal pyrimidal, and tetrahedral.
Essential concepts: Molecular geometry, VSEPR, linear, bent, trigonal planar, trigonal pyrimidal, and tetrahedral.
VSEPR Theory with Molecular Model Kits
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Purpose: Valence Shell Electron Pair Repulsion, or VSEPR Theory, is a way to determine what geometric shape a covalent compound will make based on the number of bonds and unpaired electrons surrounding the central atom of the compound. This is a chart that I have students fill out as they use a chemistry model kit to build various covalent compounds.
Essential concepts: VSEPR, molecular geometry, linear, trigonal planar, bent, tetrahedral, trigonal pyramidal, Lewis dot structures.
Covalent Compound Nomenclature Worksheet
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Purpose: This worksheet instructs students on the use of prefixes (mono-, di-, etc) to name covalent compounds.
Essential concepts: Covalent compounds, covalent nomenclature
Covalent Bonding and Molecular Geometry Study Guide
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Purpose: Once the instruction for the unit is completed, students can complete this study guide to aid in their preparation for a written test. The study guide is divided into two sections: vocabulary and short answer questions. The vocabulary words can be found scattered throughout the different instructional worksheets from this unit. The short answer questions are conceptual and meant to see if the students are able to apply what they've learned in the unit.
