Why are no organisms labeled between the end zone and 30 yard line on the left side of the field?
scientists disagree about the fossils from this time period.
scientists have not studied that part of the time scale.
there is very little fossil evidence for this time period.
there are too many fossils to name.

Compare and contrast the bohr model and the electron cloud models of the atom.

How does concentration affect reaction rate

The small bags of silica gel you often see in a new shoe box are placed there to control humidity. despite its name, silica gel is a solid. it is a chemically inert, highly porous, amorphous form of sio2. because water vapor readily adsorbs onto the surface of silica gel, it acts as a desiccant. despite not knowing mechanistic details of the adsorption of water onto silica gel, from the information provided you should be able to make an educated guess about the thermodynamic characteristics of the process. predict the signs for δg, δh, and δs for the adsorption of water.