12. Molecular Shapes & Valence Bond Theory

Determine the bond angle for the thiocyanate ion, SCN^–.

 In the PCl­₃F₂ molecule the chlorine atoms exist in the equatorial positions and the fluorine atoms exist in the axial positions. Based on this information, predict the Cl–P­–Cl bond angle.

Determine the O–N–O bond angle for N_­2O₄, which exists as O₂N–N­O_­2.

Identify the optimum c–c–c bond angle for each of the indicated carbon atoms in the molecule.

In cumulene, what are the C=C=C and H-C-H bond angles, respectively?

Based on the bond angles in CH₄, NH₃, and H₂O, rank the magnitude of these repulsions.

Acids are electrolytes that, when dissolved in water, release ______ ions.

Rank the following in order of increasing bond angles: OF₂, SnF₂, XeF₂

Estimate the value of the H−C−H bond angle in ethene.

Select the true statement below regarding SBF₃, IF₃, PF₃, and BF₃.

How does adding a lone pair affect the position of existing atoms and lone pairs?