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How is the reactivity of magnesium, zinc, and copper in hydrochloric acid different?
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How many atoms of oxygen are contained in 160 grams of n2o3
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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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Measurements that have similar values are: a. usually accurate b. sometimes accurate c. always accurate d. never accurate
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Asample of hydrated tin (ii) chloride (sncl2) has a mass of 4.90 g. when it is dehydrated, it has a mass of 4.10 g. which is the correct chemical formula for the hydrate? sncl2•2h2o sncl2•4h2o sncl2•6h2o
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How is the reactivity of magnesium, zinc, and copper in hydrochloric acid different?...
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