Gina wants to use models to better understand how the types of bonds in a molecule relate to the presence of geometric isomers. Which model would be most helpful in her research?

The ball-and-stick model shows how atoms are connected and the arrangement of bonds in three dimensions. That makes it useful for seeing how restricted rotation around certain bonds can lead to geometric isomers. A molecular formula gives only the numbers of each type of atom, while a structural formula or space-filling model is less useful for clearly viewing bond angles and spatial arrangement.

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