Add some dilute sulfuric acid to a small beaker ... helping to ensure that all the acid reacts with the copper(II) oxide.

The first step is to react the copper nitrate with sulfuric acid, which results in nitric acid and copper sulfate. From there, the copper sulfate is placed in an electrolysis cell using a platinum ...

Copper and iron are sturdy working ... leading to a series of reactions in the atmosphere that culminated in sulfuric acid falling from the sky — acid rain. The hydrogen sulfide that’s ...