5. The reaction of barium metal with liquid water produces 660.2 kJ of heat for every mole of barium that reacts. One of the products is barium hydroxide.

a. Write the balanced chemical equation for this reaction.[1 mark]

b. Is this reaction endothermic of exothermic? [1 mark]

c. Calculate the amount of heat associated with 3.65 g of water reacting at constant pressure. [2
marks]

Which of these conditions most likely produces an unstable isotope?

The arrangement of particles is most ordered in a sample of

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.