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Science Person

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6
Joined
February 16, 2009
Last visited
May 1, 2009

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Why do pennies turn dull over time and quarter don't?

By Science Person, February 19, 2009 in Chemistry
- 4 replies
- 17301 views
What effect would there be on the percentage yield if copper was not completely dry?

By Science Person, April 30, 2009 in Chemistry
- 2 replies
- 2881 views
"The difference between the boiling point of methane and chloroform

By Science Person, April 9, 2009 in Chemistry
- 7 replies
- 20439 views
Experimental error in potato lab

By Science Person, February 20, 2009 in Biology
- 3 replies
- 44247 views
Reaction of Zinc and copper in hydrochloric acid.

By Science Person, February 16, 2009 in Chemistry
- 2 replies
- 16221 views

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