Is the tarnish on a penny considered a precipitate or color change.

Subject: Is the tarnish on a penny considered a precipitate or color change.

Date: Fri Feb 25 18:25:23 2000
Posted by Denise Mathis
Grade level: teacher/prof School: Circle Christian School
City: Orlando State/Province: FL Country: United States
Area of science: Chemistry
ID: 951524723.Ch

Message:


I placed a penny on a paper towel soaked with vinegar. A tarnish formed on 
the penny. Is the tarnish on the penny considered a "precipitate" or 
a "color change" from the chemical reaction.

Re: Is the tarnish on a penny considered a precipitate or color change.

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