Copper reacting with silver nitrate, 2 of 3

Numéro d’image : 12630553
Copper reacting with silver nitrate, 2 of 3
Copper reacting with silver nitrate, 2 of 3. US copper penny (1 cent coin minted in 1981) was put into a Petri dish. 0.2M solution of silver nitrate (AgNO3) was then added. 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.
Licence : Droits gérés
Crédit: Science Photo Library / Giphotostock
Taille de l’image : 5147 px × 3404 px
Model Release : Non requis
Property Release : Non requis
Restrictions : -

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