CHM 130LL: Molecular Models - GCC - web gccaz 2025

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The document outlines a laboratory exercise for CHM 130LL: Molecular Models, focusing on the study of covalently bonded molecules. It includes instructions for drawing electron dot formulas (Lewis Structures), constructing three-dimensional molecular models, and understanding molecular shapes and polarity. The lab emphasizes the relationship between molecular structure and properties, including solubility based on polarity. Students will work in pairs to create models using a molecular modeling kit and apply concepts such as electronegativity and the 'like dissolves like' rule to predict the behavior of different compounds.

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Click ‘Get Form’ to open the CHM 130LL: Molecular Models document in the editor.
Begin by entering your name, partner's name, and section number at the top of the form.
For the Electron Dot Formulas section, indicate the number of valence electrons for each atom (H, C, N, O, Cl) in the provided fields.
Draw Electron Dot Formulas for molecules like CH4 and CH3Cl by using the drawing tools available in our editor.
Utilize molecular modeling kits to create models of each molecule. Use color codes as specified (e.g., carbon=black, hydrogen=white).
Refer to the Molecular Shapes table to determine and fill in the shapes of various molecules based on their electron dot structures.
Complete sections on polarity by identifying whether bonds are polar or nonpolar and filling out corresponding tables.

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What are the 4 molecular models?

Molecular models fall into four basic categories: skeletal or line; stick, ball-and-stick, and space-fillied or CPK.

What are the 4 types of molecular models?

12.6: Types of Intermolecular Forces- Dispersion, DipoleDipole, Hydrogen Bonding, and Ion-Dipole.

What are the 4 types of molecular forces?

There are four types of structural formulas. They include electron dot, Lewis dot, condensed, and line bond. The line bond formula is also known as the skeletal formula.

What do molecular models show?

A molecular model is a physical or visual representation of a molecules structure, used to demonstrate concepts such as molecular geometry, bonding, and how different molecules interact with one another.

CHM 130LL: Molecular Models - GCC - web gccaz 2025

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