Please help um if you can only answer one its fine 1. explain what happens when an electron moves from a lower energy level to a higher level of energy. an electron needs 1.2 eV of energy to jump from energy level 1 to energy level 2. Predict what would happen if the electrons receive 1.0 eV of energy. explain your reasoning.

2. differentiate between the magnetic quantum number and spin quantum number. discuss what each represents and the possible values.

Label a-f based on the table using c for concentrated and d for dilute

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.

Water undergoes a large change in density at 0 ∘ c as it freezes to form ice. calculate the percent change in density that occurs when liquid water freezes to ice at 0 ∘ c given that