What parts of an onion cell would you see at 100X magnification?

At 100X magnification, you would be able to observe the general structure of an onion cell, including the cell wall, cell membrane, and cytoplasm. The nucleus, which contains the genetic material, may also be visible as a distinct structure within the cell. Additionally, you might see the vacuole, which is responsible for storing substances and maintaining turgor pressure. However, finer details like organelles would require higher magnification to be clearly discerned.