Exam 9: Chemical Bonding II: Molecular Geometry and Bonding Theories

What is the total number of electron domains around the central atom for a molecule having a T-shaped molecular geometry, such as BrF₃?

How many bonds are there in one molecule of 1,5-hexadiyne (shown below)?

Which one of the following molecules is nonpolar?

Thiocarbonyl disulfide (CSF₂), based on the coordinate axes provided below, in which direction does the net molecular dipole moment point for the molecule?

According to the VSEPR model, is the molecule PF₅ polar or nonpolar?

According to molecular orbital (MO) theory, the twelve valence electrons in the O₂ molecule are distributed as follows:

Predict the molecular geometry and polarity of the SO₂ molecule.

How do you describe the molecular geometry of a molecule that has more than one central atom?

What is the molecular geometry of N₂O as predicted by the VSEPR model?

Carbon uses ________ hybrid orbitals in ClCN.

In the valence bond treatment, a π bond is formed when two p orbitals overlap side to side.

The nitrosonium ion, NO⁺, forms a number of interesting complexes with nickel, cobalt, and iron. According to molecular orbital theory, which statement about NO⁺ is correct?

What is the molecular geometry of XeO₂F₂ as predicted by the VSEPR model?

Which is true for carbon monoxide?

To make an sp³ hybrid orbital, one s atomic orbital is mixed with three p atomic orbitals.

The angles between sp² hybrid orbitals are 109.5°.

What is the molecular geometry of NO₂^- as predicted by the VSEPR model?

The Lewis structure of formaldehyde, CH₂O, is shown. Use VSEPR model to predict the molecular geometry and the H-C-H bond angle. Outline your reasoning.

Which is the most reasonable prediction for the H-O-H bond angle in H₂O?

According to the VSEPR model, a molecule with the general formula AB₅ with one lone pair on the central atom will have a ________ molecular geometry.