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Only the blue solution. Nothing happened. It remained still, a calm witness.
The more reactive metal (magnesium or zinc) acts as the displacer, while the less reactive metal (copper) is displaced. The reactivity series is not just a list—it is a hierarchy of chemical power.
Maya stood up, her voice steady. “Magnesium is the most reactive, then zinc, then copper. Because a more reactive metal will displace a less reactive metal from its salt solution.”
Maya, the cautious one, read the steps aloud. “First, we label four test tubes. One is the control.”
In their lab books, under , Maya wrote the final line of the story:
The experiment was simple, yet dangerous to a careless hand. Procedure 5.1: Investigate the reaction of metals with the salt solution of another metal.
He dropped the ribbon into the final bath of blue.
