What balances charges that may build up as reduction and oxidation occur in a voltaic cell?
a.
the salt bridge
c.
the electrolyte solutions
b.
one of the half-cells
d.
the moving electrons

Using the periodic table, complete the table to describe each atom. type in your answers.a ? b? c? d? e? f?

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.

If a gas has an initial pressure of 101kpa and a volume of 10l, then it expands to a volume of 20l, what is the new pressure?