Chem MC acid and alkalis

The answer is zinc hydroxide.

All metal hydroxides can dissolve in (neutralize) dilute strong acid to form salts and water. However, there are a few metal hydroxides which can also dissolve in (neutralize) dilute strong alkali to form salts and water. The metal hydroxides which can dissolves in both dilute strong acid and dilute strong alkali to form salts and water are known as amphoteric hydroxides. The common amphoteric hydroxides includes aluminium hydroxide, zinc hydroxide and lead(II) hydroxide.

The equation for the reaction of zinc hydroxide with dilute strong acid:
Zn(OH)2(s) + 2H+(aq) → Zn2+(aq) + 2H2O(l)

The equation for the reaction of zinc hydroxide with dilute strong alkali:
Zn(OH)2(s) + 2OH-(aq) → [ZnO2]2-(aq) + 2H2O(l)
or: Zn(OH)2(s) + 2OH-(aq) → [Zn(OH)4]2-(aq)
=

zinc hydroxide

It react with acid as neutralization.
It react with alkali to form complex salt, zincate.