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) it is a qualitative observation.
b) is is a quantitative observation.
c) it is a prediction.
d) it is a classification.
Is this b?
1. D
2. A
3. B
4. B
5. A
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*I mean to say a.
Yes.
is this really right because i had gotten this wrong
No, the correct answer is a) it is a qualitative observation.
To arrive at this answer, let's break down the options and analyze them:
a) Qualitative observation: In this case, the chemist is noting the change in color to blue. This means that they are making an observation based on the presence or absence of a characteristic (blue color). This type of observation does not involve numerical data, making it qualitative.
b) Quantitative observation: This option refers to observations that involve numerical measurements or quantities. In this case, the chemist is not measuring or quantifying anything; they are simply noting a color change. Therefore, it is not a quantitative observation.
c) Prediction: A prediction involves making an educated guess or estimate about something that may happen in the future. In this scenario, the chemist is making an observation about a chemical reaction that has already taken place. It is not a prediction.
d) Classification: Classification typically involves categorizing items or phenomena based on their similarities or differences. In this case, the chemist is not classifying anything; they are just noting a color change. Therefore, it is not a classification.
Based on this analysis, the correct answer is a) it is a qualitative observation.