nzohirova nzohirova
  • 13-04-2020
  • Chemistry
contestada

List 2 physical properties that can be used to differentiate between a Cu ( before 1982) penny and a Zn (after 1982) penny.

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avamahoney11 avamahoney11
  • 13-04-2020

Answer -green

- and visibly more brittle

Explanation: Your penny would turn green from oxidation, and the more oxidation there is the more brittle and rubbed off the imprint will be.

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