Zn(s)
+
2 HCl(aq) ---->
ZnCl
2
(aq)
+
H
2
(g)
2 Al(s)
+
6 HCl(aq) ---->
2 AlCl
3
(aq)
+
3 H
2
(g)
Cu(s)
+
n HCl(aq)
--x-->
No Reaction
Other Reactions in the Procedure
:
Removal of Excess Reducing Agent