Extracting Metals And Equilibria Flashcards
What is oxidation
The reaction with, or addition of oxygen
What is reduction
The removal of oxygen
What do combustion reactions involve
Oxidation
Metal + water —> ?
Metal hydroxide + hydrogen
What metals react vigorously with water
Calcium, potassium, sodium and lithium
What metals react more with steam
Magnesium, zinc, iron
What happens in displacement reactions
A more reactive element reacts to take the place of a less reactive element in a compound
What happens during a displacement reaction
The more reactive metal is oxidised and the less reactive metal is reduced
What happens when you put a reactive metal into a solution of a less reactive metal salt
The reactive metal will replace the less reactive metal in a salt
What happens when you put a less reactive metal into a solution of a more reactive metal salt
Nothing
What is a metal ore
A rock which contains enough metal to make it economically worthwhile extracting the metal from it
How can a metal be extracted from its ore
Chemically by reduction using carbon
