| 31. | Bent s rule provides an alternative explanation as to why some bond angles differ from the ideal geometry.
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| 32. | In reality however, methane has four bonds of equivalent strength separated by the tetrahedral bond angle of 109.5?
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| 33. | As one moves down the table, the substituents become more electronegative and the bond angle between them decreases.
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| 34. | The X-ray structure of the triphenyl substituted carbene above shows an N-C-N bond angle of ca . 101?
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| 35. | In this molecule, the carbon bond angles are 90?for the planar conformation and 88?for the puckered one.
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| 36. | This increased p character in those orbitals decreases the bond angle between them to less than the tetrahedral 109.5?
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| 37. | Actual cyclopentane molecules are puckered, but this changes only the bond angles slightly so that angle strain is relatively small.
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| 38. | For molecules with different substituents, we can use isovalent hybridization to rationalize the differences in bond angles between different atoms.
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| 39. | The carbon carbon triple bond places all four atoms in the same straight line, with CCH bond angles of 180?
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| 40. | This depends on three things, the van der Waals radii of the constituent atoms and the bond lengths, and bond angles.
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