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Maksim231197 [3]
3 years ago
5

What did you observe when heat was added to the penny with iodine?

Chemistry
1 answer:
Andru [333]3 years ago
8 0
This is a difficult task because zinc is much more active than copper and could hardly be passivated. ... The sur- face immediately turns white (the color of copper(I) iodide) and the yellow-brown color of iodine quickly fades. Rinse the coin with water, brighten it with polish and cloth and begin the whole process again.N
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