"Put a Shine on It" http://scifun.chem.wisc.edu/homeexpts/TARNISH.html "Remove Tarnish from Silver" as shown in this chemical equation «Put a Shine on It» http://scifun.chem.wisc.edu/homeexpts/TARNISH.html "Remove Tarnish from Silver" "Remove Tarnish from Silver" "Remove Tarnish from Silver" "Put a Shine on It" http://scifun.chem.wisc.edu/homeexpts/TARNISH.html baking-soda/boiling-water method