30 POINTS
What are exothermic
chemical reactions?

They are chemical reactions that absorb heat and decrease the temperature of the system.

They are chemical reactions that give off energy and increase the temperature of the surroundings.

They are chemical reactions that absorb heat and increase the temperature of the system.

They are chemical reactions that give off energy and decrease the temperature of the surroundings.

If i add water to oil what will happen

Which are forms of frozen water? check all that apply. dew frost hail rain sleet

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.