What property of an element does the atomic number represent?
a. the mass of the atom
b. the size of the atom
c. the number of protons in the atom
d. the number of neutrons in an atom

When the pressure that a gas exerts

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.

Salt in oceans comes from and of rocks