China, August 30,2019- Displacement Basic Copper Chloride (WSDTY) are an essential way to demonstrate the reactivity series of metals. I have tried many different methods to demonstrate or perform displacement reactions over the years with mixed results regarding one particular metal, aluminium. Based upon my experience, the behavior of aluminium in displacement reactions often confuses students. In light of this, I have introduced a trick involving aluminium displacement reactions that hopefully helps students understand and remember these reactions.

To carry out the reaction, a small aluminium boat is constructed from a square piece of foil. Dry copper nitrate powder is added on top. A few drops of water is then dripped from a plastic pipette in order to wet the powder. No reaction is observed, even after waiting one or two minutes. The experiment is repeated using copper chloride instead of copper nitrate. Almost immediately, the aluminium foil breaks apart, releasing a gas (fizzing) and water vapor into the air! The reaction is very exothermic and sudden.

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