What are the parts of the dye molecules that affect the rf of the spots as they move up the tlc plate? list several and explain why using lewis structures.

Molecular interactions between the stationary phase and mobile phase affect how the spots move the plate. In a dye molecule with functional groups that are able to form hydrogen bonding, it will be adsorbed on the stationary phase and will likely to form spots. Weaker intermolecular forces such as van der Waals allow the molecules to move faster together with the mobile phase.

The answer your looking for is a food chain grid. it describes how nature can support itself and survival of the fittest comes into play..