Now that we are familiar with the structures of single chain macromolecules, we are in a position to look at some of the interactions of macromolecules with other macromolecules and with smaller molecules.
Corrosion on exposed metal. Corrosion is a natural process, which converts a refined metal to a more stable form, such as its oxide, hydroxide, or sulfide. It is the gradual destruction of materials (usually metals) by chemical and/or electrochemical reaction with their environment.
Corrosion is a chemical reaction in which molecules break down due to a chemical reaction with it's surroundings. Most often, corrosion is the electrochemical oxidation of a metal (such as iron corroding to form iron oxide, a.k.a. rust). Corrosion is deterioration of a substance, usually metal.