The Chemistry of Tarnish: Why Silver Changes Color
If you have ever polished a silver spoon until it looked mirror-bright, only to watch it dull again a day or two later, you have already met the main character of this story: chemistry. Tarnish is not “dirt” in the ordinary sense. It is a thin layer of compounds that form on the surface as silver reacts with the environment. The color shifts you notice are clues to which reactions are happening, how fast they proceed, and what the surface actually looked like before the col