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
Area of science: Chemistry
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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