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Calcium hydrogen carbonate

Molecular Modeling and Lewis Structures Hands-On Labs, Inc. Version 42-0080-00-02

Review the safety materials and wear goggles when working with chemicals. Read the entire exercise before you begin. Take time to organize the materials you will need and set aside a safe work space in which to complete the exercise.

Experiment Summary:

In this experiment, you will draw Lewis structures for a series of molecules and then create the VSEPR model for the molecule using the modeling kit.


© Hands-On Labs, Inc. 1

Learning Objectives Upon completion of this laboratory, you will be able to:

● Define allotropes, valence electrons, and lone pairs.

● Describe the duet rule and octet rule.

● Define and create Lewis structures.

● Describe the valence shell electron pair repulsion (VSEPR) model.

● Draw Lewis structures for molecules.

● Create VSEPR models of molecules with molecular modeling kits.

● Identify the number of valence electrons of elements using the periodic table.

● Diagram resonance structures.

● Classify the VSEPR model of a molecule as: linear, trigonal planar, tetrahedral, trigonal bipyramidal, or octahedral.

● Assemble molecules with molecular modeling kits, preparing single bonds, double bonds, and resonance structures.