What is a displacement reaction?
A reaction where a more reactive metal than the one in a salt will switch places with the weaker metal.
A reaction where something disappears in a puff of smoke, then reappears nearby.
Which is more reactive, aluminium or copper?
Aluminium
Copper
What happens when iron reacts with copper sulphate?
nothing
The iron switches with the copper to form iron sulphate
What happens when copper reacts with iron sulphate?
Nothing
The copper switches places with the iron to form copper sulphate