jaylindixon74 jaylindixon74

07-04-2020
Biology

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When a counterfeit detection pen is used on an authentic bill, what color does it turn?

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szilaitis szilaitis

07-04-2020

If the bill is counterfeit and the paper is wood-based, the iodine in the pen solution will react with the starch and leave a dark brown or black mark.

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