Julie went on a picnic. During the picnic, Julie saw ants climb up the picnic table, pick up crumbs, and carry them away. Which of the following is an observation Julie made?
OA. The ants climbed up the table.
OB. The ants like the taste of bread crumbs.
OC. The ants are going to eat the crumbs.
OD. The ants can bite.

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.