Grade 9 Molecular Shapes Worksheet
Explore the fundamental concepts of molecular geometry and VSEPR theory with this Grade 9 science worksheet.
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Molecular Shapes Worksheet
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Read each question carefully and answer to the best of your ability. Show all your work where applicable. This worksheet covers topics related to molecular shapes and VSEPR theory.
1. Which theory is used to predict the geometry of individual molecules from the number of electron pairs surrounding their central atoms?
Atomic Theory
VSEPR Theory
Kinetic Molecular Theory
Quantum Theory
2. What is the molecular geometry of a molecule with two bonding pairs and no lone pairs around the central atom?
Trigonal planar
Bent
Linear
Tetrahedral
3. The acronym VSEPR stands for .
4. Lone pairs of electrons repel more strongly than bonding pairs.
5. Explain how the number of electron domains around a central atom influences its molecular geometry.
6. Draw the Lewis structure for water (H2O) and determine its molecular geometry. Explain your reasoning.
7. A molecule with a tetrahedral electron geometry always has a tetrahedral molecular geometry.
True
False
8. The bond angles in a trigonal planar molecule are approximately 109.5 degrees.
True
False
Match the molecular geometry with its description.
9. Linear
a. Central atom with three bonding pairs and one lone pair
10. Trigonal Pyramidal
b. Central atom with two bonding pairs and no lone pairs
11. Bent
c. Central atom with two bonding pairs and two lone pairs