4 Experiment 5.1 — Chemistry Form

Lin nodded, swirling the last of the pale, colourless solution down the sink. “That’s not war,” she smiled. “That’s displacement. And now we know how to prove who belongs where.”

“No reaction,” Maya noted, scribbling in her book. “Copper + copper sulphate → no change. That means copper is low in the reactivity series. It can’t kick itself out of its own salt.” chemistry form 4 experiment 5.1

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. Lin nodded, swirling the last of the pale,

The reaction was instant and violent. The magnesium hissed like an angry cat. The blue solution boiled around the metal, turning pale within seconds. But unlike the zinc, the magnesium didn’t just produce a dusting of copper. It became coated in a hot, fizzing blanket of reddish-brown powder. The test tube grew warm to the touch. And now we know how to prove who belongs where