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List the metals in order of their reactivity towards other substances
Potassium
Sodium
Lithium
Calcium
Magnesium
Aluminium
Zinc
Iron
Copper
Silver
Gold
Why do more reactive metals displace less reactive metals in compounds
Because it bonds more strongly
Iron oxide + aluminium →
Aluminium oxide + iron
Copper sulphate + iron →
Iron sulphate + copper
What happens if a piece of silver metal is put into a solution of copper sulphate
Nothing bc the more reactive metal is already in the salt