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An ion that consists of 7 protons, 9 neutrons, and 10 electrons has a net charge of
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Which term describes a fracture in the earth at which land stays in the same place? a. joint b. fault c. split d. hinge
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Asample of the male sex hormone testosterone, c19h28o2, contains 3.88×10^21 atoms of hydrogen.(a) how many atoms of carbon does it contain? (b) how many molecules of testosterone does it contain? (c) how many moles of testosterone does it contain? (d) what is the mass of this sample in grams?
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This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.
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An ion that consists of 7 protons, 9 neutrons, and 10 electrons has a net charge of...
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