a colorimeter is an instrument used for chemical analysis by comparing a liquid’s color with standard colors. in an experiment, a scientist used two colorimeters and noted the readings. the first colorimeter showed consistent readings that were five points lower than the actual reading. the second colorimeter provided readings that were the same as the actual reading. which two statements are implications of these readings?
the first colorimeter is reliable but not valid.
the second colorimeter is valid and reliable.
both the colorimeters are reliable and valid.
the readings of the first colorimeter can be used without repeating the experiment.
the readings of the second colorimeter aren’t reliable and can’t be used for the experiment.

The correct statements are that the first calorimeter is reliable but not valid, and the second calorimeter is valid and reliable.

Explanation:

The first calorimeter is reliable as the reading demonstrated by it is similar when each time the experiment is performed, however, the result attained is not correct, though it is reliable. On the other hand, the second calorimeter is both reliable and valid, as it is demonstrating the accurate results from time to time. This is valid as it is providing a similar result as that of the original readings.

The correct statements are that the first calorimeter is reliable but not valid, and the second calorimeter is valid and reliable.

Explanation:

The first calorimeter is reliable as the reading demonstrated by it is similar when each time the experiment is performed, however, the result attained is not correct, though it is reliable. On the other hand, the second calorimeter is both reliable and valid, as it is demonstrating the accurate results from time to time. This is valid as it is providing a similar result as that of the original readings.

Explanation:

d.

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