A chemist notes that a solution turns blue when a chemical reaction takes place. Which of the following correctly describes the chemist's data?
A.The data is a qualitative observation***
B.The data is a quantitative observation
C.The data is a prediction
D.The data is a classification
Yes.
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The correct answer is A. The data is a qualitative observation.
Explanation:
Qualitative observations involve the use of our senses to describe the properties or characteristics of something without using numerical measurements. In this case, the chemist is observing a change in color, which is a characteristic of the solution turning blue. This observation does not involve any measurements or numerical values, making it a qualitative observation.