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A reproducible measurement is an accurate one. A. True B. False User: The metric prefix milli- means: A. 100 times smaller. B. 1000 times smaller. C. 1000 times larger. D. 100 times larger. User: In converting between units, it is never necessary to use more than one conversion factor. A. True B. False User: Zero digits in a measurement are significant. A. True B. False User: Identify the activity that belongs in the field of chemistry. A. developing ...
Weegy: THe answer is D. all of the above User: The largest number from among the following is: A. 1.80 x 10-4 B. 1.80 x 10-6 C. 1.80 x 10-2 D. 1.80 x 10-8 Weegy: C. 1.80 x 10-2 is The largest number among the given User: Which of these equalities is correct? A. 1 g = 1000 kg B. 1 cm = 100 m C. 1 L = 1000 mL D. 1 mm = 10 cm User: Which of these measurements is expressed to four significant figures? ... (More)
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Asked 9/12/2012 10:35:55 PM
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A hypothesis is A. an observation recorded from an experiment. B. a proposed explanation for what is observed. C. a summary of the results of many experiments. D. a well-tested explanation for many observations.
Weegy: A hypothesis is an explanation for a phenomenon that can be tested in some way that ideally either proves or disproves it. [ For the duration of testing, the hypothesis is taken to be true, and the goal of the researcher is to rigorously test its terms. The concept is a very important part of the scientific method, and it also holds true in other disciplines as well. For example, some historians have put forward the hypothesis that the ... (More)
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Asked 9/12/2012 10:42:38 PM
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A student estimated a mass to be 250 g but, upon carefully measuring it, found the value to be 240 g. What is the percent error of the estimated mass if the measured value is the accepted one? A. 4.0% B. -4.2% C. -4.0% D. 4.2%
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Updated 12/10/2012 10:54:18 PM
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The percent error of the estimated mass if the measured value is the accepted one is D.4.2%
Added 12/10/2012 10:54:18 PM
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