Final answer:
Thin-layer chromatography (TLC) is characterized by a stationary phase of silica gel on a piece of glass and a mobile phase of liquid.
Step-by-step explanation:
The chromatography system characterized by a stationary phase of silica gel on a piece of glass and a mobile phase of liquid is thin-layer chromatography (TLC).
In thin-layer chromatography, a small amount of the sample is applied to a thin layer of silica gel coated on a glass plate.
The plate is then placed in a container with a liquid solvent called the mobile phase.
As the solvent moves up the plate, the different components of the sample will move at different rates based on their affinity for the stationary phase (silica gel) and the mobile phase (liquid solvent).