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Ahypothesis must be testable and falsifiable to be considered scientific a. trueb. false
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An alloy contains 66 g of pure zinc. what is the percentage of zinc in the alloy? express your answer to two significant figures and include the appropriate units.
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A Goodyear blimp holds 5.74 x 10 L of helium at 17°C and a pressure of 101 kPa.
Calculate the mass...
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