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The closeness of a measurement to its true value is a measure of its:
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Which of the following statements is true? a. elements in the last period are radioactive. b. atomic weight is the same as atomic mass. c. elements in the same group have the same number of electron shells. d. atomic number equals the number of neutrons in the nucleus of an atom.
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What is the molar mass of a gas that has density of 2.054 g/l
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What is the average rate of the reaction between 10 and 20 s?
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The chemical formula for emerald is be3al2(sio3)6.an emerald can be decided as
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The closeness of a measurement to its true value is a measure of its:...
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