Question- calculate the percent by mass of zinc in the, Chemistry

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Question- calculate the percent by mass of zinc in the

Question- Calculate the percent by mass of zinc in the post-1982 pennies using following information: the total mass of each penn is 2.500 g, the density of copper is 8.96 g/mL, the density of zinc is 7.14 g/mL, and the mass of a penny if it were 100% copper would be 3.11g

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Chemistry: Question- calculate the percent by mass of zinc in the

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