What happens when salt reacts with HCl?

When an acid reacts with metal, a salt and hydrogen are produced:

acid + metal → salt + hydrogen

The salt that is produced depends upon which acid and which metal react.

Sodium metal reacts with hydrochloric acid which produces hydrogen gas and sodium chloride.

2Na(s)+2HCl(aq)→2NaCl(aq)+H₂(g)