Cu ion being a Lewis acid stabilized the intermediate formed while Na ion can not.
Displacement reaction
Indeed there is, the product of the reaction will be Copper Chloride (CuCl) and Hydrogen gas (H2 ).
Silver chloride is the precipitate in this reaction. CuCl(aq) + AgNO3(aq)-->CuNO3(aq) + AgCl(s)
It decomposes to Cl2 and Cu there is another reaction as well. decomposes to CuCl(s) and 0.5Cl2(g)
Probably Cu2Cl2 is a dimer of CuCl.
the element of CuCl would be Cu2Cl would be the answer.
Cu + HCl ----> CuCl + H I think that is it. Not one hundred percent certain though.
Cpopper (I) Chloride other wise known as 'Cuprous Chloride. There is the more common chloride , copper(II) chloride (CuCl2) , kknown as cupric chloride.
Copper I Chloride is CuCl - Copper II Chloride (the most probable one) CuCl2
In CuCl, copper is in +1 oxidation state, So that is a d10 system and the d-orbitals are completely filled. Hence colourless.
CuCl
Copper Chloride