Two different compounds have the formula \(\mathrm{XeF}_{2} \mathrm{Cl}_{2} .\) Write Lewis structures for these two compounds, and describe how measurement of dipole moments might be used to distinguish between them.

The two different compounds with the formula XeF2Cl2 have the following Lewis structures: 1. First isomer: ``` F Cl \ / Xe / \ F Cl ``` 2. Second isomer: ``` Cl F \ / Xe / \ Cl F ``` Both structures have distorted tetrahedral geometry. The first isomer has a smaller net dipole moment due to the partial cancellation of the Xe-F bond dipoles, while the second isomer has a larger net dipole moment. By measuring the dipole moments, we can distinguish between these two compounds: the compound with a smaller dipole moment would be the first isomer and the one with a larger dipole moment would be the second isomer.