When you mix hydrochloric acid and silver nitrate, there is a chemical change and the overall reaction is that of double displacement. This reaction is usually shown as:
AB + CD -----> AD + BC
In case the reacting species are hydrochloric acid, we can write the chemical equation for the reaction as:
HCl (aq) + AgNO3 (aq) -----> HNO3 (aq) + AgCl (s)
When you mix these together, you will see that a white precipitate starts to form in the reaction beaker. This is silver chloride coming out of the solution. What is left in the aqueous solution now is nitric acid and any excess hydrochloric acid.
AB + CD -----> AD + BC
In case the reacting species are hydrochloric acid, we can write the chemical equation for the reaction as:
HCl (aq) + AgNO3 (aq) -----> HNO3 (aq) + AgCl (s)
When you mix these together, you will see that a white precipitate starts to form in the reaction beaker. This is silver chloride coming out of the solution. What is left in the aqueous solution now is nitric acid and any excess hydrochloric acid.