Extracting Metals And Equilibria Flashcards
(12 cards)
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
