felibeli2999 felibeli2999

23-08-2017
Chemistry

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In this experiment, you compare several unknown powders to known powders. What is the name given to all of the known materials used for comparison in this experiment?

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Erudite1 Erudite1

30-08-2017

The correct option is CONTROLS.
In scientific experiments, controls are groups which receive no treatments and which are used as standards to measure the behavior of other experimental subjects.
Comparison is usually made between control and all the other experimental groups.

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