02-Sadra is a college student studying chemistry. In one of his labs, he needs to add 10 grams ofsodium carbonate to a mixture and analyze the results. When he is measuring the chemical on aweight sensor, he notices the amount of Na2co3 he is weighing is much larger than everyoneelse's, yet the sensor reads 10 grams. He dumps the chemicals back into the container andreweighs it, only to get the same result. Which of the following is accurate in describing Sadra'sweight sensor?Not reliable, and not validO Not reliable, but validO Reliable, but not validReliable and validQuestion 1002-Dr. Narayan conducted a research study about the effects that coffee has on the brain.However, he told participants that it was an on-going survey on the amount of coffee theyconsumed on a day-to-day basis. This type of study is known as deception. Is it legally allowed inthis situation and why?O Yes, but only if Dr. Narayan informed the participants of the true meaning of the study at the end.Yes, researchers can use deception and are not required to inform the participants of the true meaning ofthe study at any point.No, Dr. Narayan must inform the participants of the true meaning of the study at the beginning when theyagree to participate.No, Dr. Narayan's deception might cause irreparable harm to the participants and can never be allowed.

Reliable, but not valid Yes, but only if Dr. Narayan informed the participants of the true meaning…

02-Sadra is a college student studying chemistry. In one of his labs, he needs to add 10 grams of sodium carbonate to a mixture and analyze the results. When he is measuring the chemical on a weight sensor, he notices the amount of Na2CO3 he is weighing is much larger than everyone else's, yet the sensor reads 10 grams. He dumps the chemicals back into the container and reweighs it, only to get the same result. Which of the following is accurate in describing Sadra's weight sensor? O Not reliable, and not valid O Not reliable, but valid Reliable, but not valid O Reliable and valid

02-Sadra is a college student studying chemistry. In one of his labs, he needs to add 10 grams of sodium carbonate to a mixture and analyze the results. When he is measuring the chemical on a weight sensor, he notices the amount of Na2CO3 he is weighing is much larger than everyone else's, yet the sensor reads 10 grams. He dumps the chemicals back into the container and reweighs it, only to get the same result. Which of the following is accurate in describing Sadra's weight sensor? O Not reliable, and not valid O Not reliable, but valid Reliable, but not valid O Reliable and valid

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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