An electrochemical cell utilizes a redox reaction either to generate electrical energy or to drive a desirable process using electrical energy. Identify the cell parameters associated with spontaneous and nonspontaneous redox reactions.

Determine the  wavelength of light emitted when an electron  in an li2+ ion  makes a transition from an orbital with n  =  6 to an orbital with n  = 5.

Aphysical change is one that you can put in and remove like a ham sandwich. the stuff you put in there can be changem its not permanet. a chemical change is on that can't be change thats permanet. like when you make a cake and bake it. you can't get those ingredients back.