When zinc (Zn) reacts with hydrochloric acid (HCl), the products formed are zinc chloride (ZnCl2) and hydrogen gas (H2). The chemical reaction can be represented as:

Zn(s) + 2HCl(aq) → ZnCl2(aq) + H2(g)

In this reaction, zinc metal (Zn) reacts with hydrochloric acid (HCl), which is a strong acid. The reaction proceeds through a process called a single-displacement reaction, where zinc replaces hydrogen in the acid. As a result, zinc chloride, which is a soluble salt, is formed along with the evolution of hydrogen gas.