48.5g of methane (CH4) reacts with 197.4g oxygen gas according to the following equation. CH4 + 2O2 → CO2 + 2H2O

A.) What is the limiting reactant in this scenario?
(make sure to show the work to prove this answer)

B.) What is the mass of the other reactant used or consumed in the
reaction?

C.) Determine the excess mass of the non-limiting reactant from the scenario

D.) Determine the volume of CO2 produced during the reaction

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.