If you need to use the reaction to generate 977 kJ of heat, what mass of chlorine gas do you need to react with excess phosphorus solid? 2P(s) + 5Cl2(g) ⟶ 2PCl5(g) ΔHrxn= ー886kJ

Write the chemical formula for a compound that is made of an element from group 1 and an element from group 17

Which of the following are correct values for the ideal gas laws constant r

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.