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CaHeK987 [17]
2 years ago
10

When conducting tests for the presence of a specific organic substance, it is very useful to include a ________ control, which w

ill always turn the expected color.
Biology
1 answer:
olga_2 [115]2 years ago
8 0

When conducting tests for the presence of a specific organic substance, it is very useful to include an Experiment control.

<h3>What are chemical changes?</h3>

A chemical change is defined as a change in which a change in chemical composition takes place. A new substance is formed in these reactions.  Chemical reactions are usually characterized by a change in colour, heat change, precipitate formation and evolution of bubbles.

Example: Oxidation of magnesium

Thus, this could be the answer.

To learn more about chemical change click here:

brainly.com/question/23693316

#SPJ1

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