Look at the diagram of the electrochemical cell below. Which statement is accurate?

A. It is a voltaic cell because the reaction is spontaneous

B. It is a voltaic cell because the reaction is nonsponteous

C. It is an electrolyte cell because the reaction is spontaneous

D. It is an electrolyte cell because the reaction is nonsponteous​

4al + 3o2 → 2al2o3 what does the "3" in front of o2 stand for? a) it indicates that there are 5 oxygen atoms after you add the coefficient and the subscript. b) it indicates that that there are are total of 6 oxygen atoms all bonded together as a single molecule. c) it indicates that there are 3 oxygen molecules chemically bonded to each other in the reaction. d) it indicates that there are 3 separate oxygen molecules in the reaction.