Answer:
zinc and lead or copper and tin
Explanation:
these elements react both as an acid as well as a base
2Fe2O3, reason is when we add 4Fe + 3O2, we get the same answer, but in a different form.
There are no states in the picture, but Na should have a "(s)" after it, and Cl2 should have a "(g)" after it. NaCl should have an "(s)". Chlorine is a diatomic element so it has a "2" subscript on it.
Hope this helped! :)