Chemical chameleon reaction - GIF

Chemical chameleon reaction.

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Previously:

https://www.homemadetools.net/forum/...330#post211605
https://www.homemadetools.net/forum/...283#post208139
https://www.homemadetools.net/forum/...798#post156106
https://www.homemadetools.net/forum/...150#post207671
https://www.homemadetools.net/forum/...678#post205994

many chemicals when mixed together will change color but none that I know of can revert back to original. The only Chems. I messed with in lab were those that could go boom or give off dangerously noxious gases or eat through hard substances. Much more fun that just watching a color change