Chemistry, 08.07.2019 05:10 bthakkar25

Apenny has a total mass of 3.1 grams. zinc makes up 2.9 g of the penny. what is the percentage of zinc in the penny?

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Apenny has a total mass of 3.1 grams. zinc makes up 2.9 g of the penny. what is the percentage of zi...

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