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Copper reacting with silver nitrate, 2 of 3

Copper reacting with silver nitrate, 2 of 3

C030/8170

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Credit

GIPHOTOSTOCK / SCIENCE PHOTO LIBRARY GIPHOTOSTOCK / SCIENCE PHOTO LIBRARY

Caption

Copper reacting with silver nitrate, 2 of 3. US copper penny (1 cent coin minted in 1981) was put into a Petri dish. Since copper is more reactive than silver, a single-displacement reaction occurred: Cu + AgNO3 -> Ag + Cu(NO3)2. In this sequence Photo 1 was taken before the solution was added. Photo 2 was taken after the coin had been in the solution for 1 min. Photo 3 was taken after the coin had been in the solution for 7 min. Note the solution becomes slightly bluish due to Cu2+ ions. Photo 2 of 3.

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Model release not required. Property release not required.

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