What are the noticeable effects if ever copper reacted with sulfuric acid when done in a laboratory experiment?
None. Copper does not react with sulfuric acid. Copper will react with nitric acid, or solutions of HCl in the presence of strong oxidizers like dissolved ClO2 gas. But it's pretty passive towards sulfuric acid. Even the concentrated 18M acid does not affect it at any great rate. If it's heated up then it will SLOWLY react, but other than that, nothing. However, throwing real world issues aside, if it WERE to react it'd be like the previous answerer said, Cu + 4 H+ + SO4-2 --> Cu+2(aq) + SO2(g) + 2H2O and the solution would become a pretty sky blue color, and if the solution were evaporated, Cu+2 + SO4-2 + 5H2O --> CuSO4*5H2O (solid) the blue pentahydrate crystal form.
Copper Oxide and Sulphuric acid forms: CuO + H2SO4 --> CuSO4 + H2O The final reaction would be Copper Sulfate and Water
Cu(s) + H2SO4 yields CuSO4 +SO2 +H2O Youd get a very blue sloution from the copper sufate
