I'm doing a science experiment on how the coating of steel wool affects its rusting rate. I'm doing the background information right now. What I need help with is how to make sense of the chemical reaction of rust. Can someone give me examples of these things so it makes sense?? Corrosion is an electrochemical process that involves an anode, an electrolyte and a cathode. An anode is a piece of metal that readily gives up electrons. An electrolyte is a liquid that helps electrons move, and a cathode is a piece of metal that readily accepts electrons. When a piece of metal corrodes, the electrolyte helps provide oxygen to the anode. As oxygen combines with the metal, electrons are set free. When they flow through the electrolyte to the cathode, the anode metal disappears, being converted into rust.