Your are given a piece of Zn and AL, and amounts of ZNSO4 and Al2(SO4)3 solutions. A. WHat combinations of these 4 substances would you make to illistrate that ZN is less reactive than AL? B. WHat would the equation be?
As far as the equation is concerned, say that Al is the more reactive metal. Then
2Al + 3ZnSO4 --> 3Zn + Al2(SO4)3
If Zn is more reactive then
3Zn + Al2(SO4)3 --> 2Al + 3ZnSO4 (which is the "back reaction" to the one above.)