1. How many moles of aluminum would be needed to completely react
with 8.0 moles of oxygen gas?

Ametal with a large number of free flowing electrons most likely has good conductivity

Ok so co(g) is not pronoused that. the only clue is that youpronouse it the oppisote way. 

Remember that rust prevented by placing a sacrificial electrode in electrical contact with the iron. the sacrificial electrode must be composed of a metal that  oxidizes  more easily than iron (that is, it must be below iron in table 18.1).

Cobalt (co)hoped i