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what purpose is served when a test tube is done using water instead of a sample substance ...
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It provides a basis for comparison ...
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User: what purpose is served when a test tube is done using water instead of a sample substance

Weegy: It provides a basis for comparison
Expert answered|toxictoast96|Points 1184|

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All Categories|No Subcategories|Expert answered|Rating 0| 2/3/2010 8:53:55 PM
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