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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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An object of mass 10.0 kg and volume 1000 ml and density 10 g/ml sinks in water whoβs density is 1.0 g/ml. what is the mass of the water which has been displaced in kilograms
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Increasing the moles of for a reaction at equilibrium temporarily causes the value for Qc to be gre...
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