N₂
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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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Exit what is the density of an object having a mass of 5.0 g and a volume of 45.0 cm3?
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Which one of the following compounds produces a basic solution when
dissolved in water?
N₂
N₂
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