Although your question is quite Vague a general answer is provided. It is important to read each CHEM LAB and minilab before you to class to ; Understand how the Labs work efficiently
A CHEMLAB in chemistry is a research laboratory where scientific researches/experiments are conducted, it presents the opportunity tp students to actually practicalize what they learn in the classroom. while a minilab is a micro photographic system that is used to develop and print films in place of larger labs.
Hence it is important to read each Lab effectively before coming to class because that way you will understand how the labs work efficiently
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