Which statement would indicate the presence of an acid? it tastes bitter.. it does not react with active metals. it reacts with active metals to form a gas. it does not change the color of litmus paper

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.

Ab c or d ? i’m not sure what the answer is

How can the periodic table be used to predict the behavior of elements?