Chem: Molecular Geometry (3rd Quarter)

What are lone pairs?

• Electrons that are transferred during a reaction

• Electrons that participate in bonding

• Electrons that do not participate in bonding

• Electrons that are shared during a reaction

How are double and triple bonds treated in terms of electron-pair repulsion?

• They are treated as separate entities

• They are ignored in calculations

• They are treated like single bonds

• They are treated as stronger than single bonds

What does the VSEPR model help determine?

• The mass of a molecule

• The geometric arrangements of electron pairs

• The speed of a chemical reaction

• The temperature of a substance

What is crucial for efficient catalysis in biological reactions?

• The pressure of the environment

• The complementary shapes of enzymes and substrates

• The temperature of the reaction

• The concentration of reactants

What complicates determining the geometry of a molecule?

• The presence of both lone pairs and bonding pairs

• The presence of multiple resonance structures

• The absence of any electron pairs

• The presence of only bonding pairs