MadSci Network: Chemistry

Subject: Effect of salt and vinegar to tarnish on pennies

Date: Thu Sep 25 11:59:52 1997
Posted by Jan Fechhelm
Grade level: 4-6
School: Willow Branch Intermediate School
City: College Station State/Province: TX
Country: USA
Area of science: Chemistry
ID: 875206792.Ch
For an example of a chemical change, we looked at how a solution of 
salt and vinegar quickly turns pennies shiny and bright.  WHY?  What 
is the chemical process at work here???

Re: Effect of salt and vinegar to tarnish on pennies

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