Question

In each trial, you will add an indicator to the
mystery food sample. But you will also add the
indicator to a known substance and water. Why is
that important? Check all reasons.
to practice measuring volume using the
graduated pipette correctly
to match the mystery food sample to a definite
positive result (gelatin, oil, etc.)
to match the mystery food sample to a definite
negative result (water)
to increase the amount of data.
DONE

Answer 1

Answer:

to match the mystery food sample to a definite

positive result (gelatin, oil, etc.)

to match the mystery food sample to a definite

negative result (water)

Answer 2

An indicator is added to a known substance and water to match the mystery food sample to a definite

definitepositive result.

What are indicators?

Indicators are substances which produce specific color changes in the presence of particular substances and these color changes are used to identify the substances.

In the trials to identify the mystery food sample, an indicator is added to a known substance and water to match the mystery food sample to a definite

definitepositive result.

Learn more about indicators at: https://brainly.com/question/25031970

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