Experiment 5.1: Chemistry Form 4

“Don’t be a hero yet,” Lin warned, pouring 2 cm³ of the deep, sapphire-blue copper(II) sulphate solution into each tube. The liquid was beautiful, like a piece of the ocean trapped in glass.

Ravi, whose fingers were always a little too eager, held a small coil of magnesium ribbon. It looked like a piece of dull, grey tinsel. “This looks harmless,” he smirked. chemistry form 4 experiment 5.1

“Last one,” Ravi whispered, holding the magnesium ribbon with a pair of tongs. Puan Aishah wandered over. “Careful, Ravi. This one is dramatic.” “Don’t be a hero yet,” Lin warned, pouring

“Today,” she had announced, her voice crackling through the lab’s humid air, “you are all forensic chemists. A factory has spilled three different metals—magnesium, zinc, and copper—into a vat of copper(II) sulphate solution. Your job is to determine which metal is the ‘hero’ that reacts, and which are the ‘villains’ that remain inert.” It looked like a piece of dull, grey tinsel