You have 6 moles of a substance.

which statement is true?

a. you have three times the number of particles that are in 12 grams of carbon-12.

b. you have one-third the number of particles that are in 12 grams of carbon-12.

c. you have the same number of particles as in 12 grams of carbon-12.

d. you have six times the number of particles that are in 12 grams of carbon-12.

What are the first three quantum numbers for the electrons located in subshell 2s?

The human eye contains a molecule called 11-cis-retinal that changes shape when struck with light of sufficient energy. the change in shape triggers a series of events that results in an electrical signal being sent to the brain that results in vision. the minimum energy required to change the conformation of 11-cis-retinal within the eye is about 164 kj/mol.

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.