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Which of the following is an example of a quantitative observation?
A)
The piece of metal is longer than the piece of wood.
B)
Solution 1 is much darker than solution 2.
C)
The liquid in beaker A is blue.
D)
The temperature of the liquid is 60°C.
E)
At least two of the above (A-D) are quantitative observations.
ANS: D DIF: Easy REF: 1.2
KEY: Chemistry | general chemistry | general concepts | scientific method MSC: Conceptual
2. A quantitative observation
A)
contains a number and a unit
B)
does not contain a number
C)
always makes a comparison
D)
must be obtained through experimentation
| Author | ExamPro |
| Published | 30 Jul 2024 |
| Included files | |
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