Chemistry, 18.10.2020 14:01 gianababnnna

2. A penny isn't really made from much copper anymore. In fact it is zinc that is plated with copper on the outside. A penny has a mass of 2.5 g and 2.43 g of it is zinc. What is the percent
composition of copper in the penny?

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2. A penny isn't really made from much copper anymore. In fact it is zinc that is plated with copper...

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