Question

1. choose the best answer.

____ theory is used to predict the shape of a molecule due to the repulsion between valence - level electron pairs.
vsepr
molecular
geometry

1. choose all that apply.

when determining the shape of a molecule, which three should be considered?
vsepr theory
lewis structures
molecular geometry
the number of single, double, or triple bonds

Explanation:

Question 2

The VSEPR (Valence - Shell Electron - Pair Repulsion) theory is specifically designed to predict the shape of a molecule by considering the repulsion between valence - level electron pairs. The "Molecular" option is too general, and "Geometry" alone does not refer to the theory that accounts for electron - pair repulsion in the context of molecular shape prediction.

• VSEPR theory: It is used to predict the molecular shape based on electron - pair repulsion, so it is relevant.
• Lewis structures: They show the bonding and non - bonding electron pairs in a molecule, which is important for determining molecular shape as the number of electron pairs (from Lewis structures) is used in VSEPR theory.
• The number of single, double, or triple bonds: This is related to the number of electron pairs involved in bonding, which affects the molecular shape (e.g., a double bond has more electron density and can influence repulsion). Molecular geometry is the result of determining the shape, not a factor used to determine it.

Answer:

A. VSEPR

Question 3