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Ch.4 Molecular CompoundsWorksheetSee all chapters
All Chapters
Ch.1 Matter and Measurements
Ch.2 Atoms and the Periodic Table
Ch.3 Ionic Compounds
Ch.4 Molecular Compounds
Ch.5 Classification & Balancing of Chemical Reactions
Ch.6 Chemical Reactions & Quantities
Ch.7 Energy, Rate and Equilibrium
Ch.8 Gases, Liquids and Solids
Ch.9 Solutions
Ch.10 Acids and Bases
Ch.11 Nuclear Chemistry
BONUS: Lab Techniques and Procedures
BONUS: Mathematical Operations and Functions
Covalent Bonds
Naming Binary Molecular Compounds
Molecular Models
Bonding Preferences
Lewis Dot Structures: Neutral Compounds (Simplified)
Multiple Bonds
Multiple Bonds (Simplified)
Lewis Dot Structures: Multiple Bonds
Lewis Dot Structures: Ions (Simplified)
Lewis Dot Structures: Exceptions (Simplified)
Resonance Structures (Simplified)
Valence Shell Electron Pair Repulsion Theory (Simplified)
Electron Geometry (Simplified)
Molecular Geometry (Simplified)
Bond Angles (Simplified)
Dipole Moment (Simplified)
Molecular Polarity (Simplified)

According to the VSEPR Model, bond angles result from surrounding elements and lone pairs around the central element positioning themselves at an optimal distance.

Ideal Bond Angles

Concept #1: Bond Angles

Example #1: If the H–C–H angle within the CH4 molecule is 109.5º, what is the H–N–H bond angle within NH3?

Concept #2: Bond Angles and Electron Groups

Bond angles can further differentiate molecules that possess the same number of electron groups.

Example #2: Determine the H–Sn–H bond angle for the following compound: SnH2.

Practice: Determine the bond angle for the following compound: BeCl2.

Practice: Determine the bond angle for the thiocyanate ion, SCN.

Practice: Determine the Cl–O–Cl bond angle for the OCl2 molecule.