Essential Chemistry for IGCSE - Rate Of Reaction (Section 2 - No. 42)
In a reaction rate experiment, what is the purpose of a control?
To measure the effect of the independent variable.
To compare the experimental results to a baseline.
To ensure that all experimental equipment is working.
To account for all errors in the experiment.
Explanation
The control provides a baseline or comparison point to assess the effect of the independent variable.
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