single displacement reaction

Magnesium + Hydrochloric Acid → ?

Magnesium Chloride (MgCl₂) + Hydrogen gas (H₂)

What type of reaction is Mg + HCl?

Single Displacement

Observation when Mg reacts with HCl

Fizzing, bubbles, salty smell, white foam

What gas was produced in Mg + HCl reaction?

Hydrogen gas (H₂)

What confirmed the presence of hydrogen gas?

Pop sound with flaming splint

What caused the pop sound?

Hydrogen igniting in presence of oxygen

Observation after Mg + HCl reaction

White smoke, burning smell, fizzing stopped

General pattern of single displacement reaction

A + BC → AC + B

Copper(II) Sulfate + Iron → ?

Iron(II) Sulfate (FeSO₄) + Copper (Cu)

What type of reaction is CuSO₄ + Fe?

Single Displacement

Observation when steel wool placed in CuSO₄ solution

Solution turned light green; steel turned reddish-pink

What color was the original CuSO₄ solution?

Blue

What caused the color change in CuSO₄ + Fe reaction?

Iron displaced copper from solution

What evidence showed copper was formed?

Pink solid appeared on steel wool

What rule predicts if displacement will occur?

Activity Series of Metals