How many molecules of CO2 are in 8.6 mol of CO2?

If you want to create an electrical current, which situation would produce a solution capable of this

Which statement correctly describes metallic bonds? a. they form when certain atoms lose electrons and other atoms gain electrons. b. they involve an attraction between anions and cations. they always involvpoth a metal and a nonmetal. d. they can only form between atoms of the same element. e. they form because electrons can move freely between atoms.

Correct relationship between molecular formula and empirical formula