Why does HCl both precipitate and dissolve Silver? Adding $\ce{HCl}$ to silver nitrate solution causes silver chloride to precipitate. Adding more $\ce{HCl}$ causes the silver to re-dissolve. What is happening to the silver chloride when it re-dissolves?
The precipitation reaction is:
$$\ce {Ag+ + Cl- -&gt; AgCl_{(s)}}$$
The next reaction is:
$$\ce {AgCl_{(s)} +Cl- -&gt; AgCl2- }$$