Why doesn't copper react with HCL?

Hope you won't be mad at me because I am not going to give you the exact answer, but rather a tip. :)

Check with electrode potentials of H+ and Cu2+. Which one is higher, and which is lower? In which direction would a reaction occur spontaniously then?

Hope you'll find the solution resolving this questions.

Good luck!

It does.

Take some finely divided copper (or copper foil) and soak it in concentrated HCl. The color change of the solution isn't quick, and don't expect to pop the cork off a test tube with liberated H2. It forms complex Cu(II) ions.

HCL (hydrocloric acid) is a cloride---what kind of reaction are you looking for---HCL is acidic-copper can be cleaned with it. but if you are looking for a way to make copper cloride for -say, some type of plating solution, you can buy CuCL. check the yellow pages.