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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? A. 0.108 m B. 16.530 m C. 2.6 x 104 m D. 5.300 x 10-7 m Weegy: 6066mg (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 Salem Witch Trials were brought about by the consumption of grains contaminated with ergot, resulting in a mass hysteria. ] (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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