Chemistry - extracting metals and equilibrium

Cards (20)

What is the reactivity series
A list of metals
If something gains oxygen what does it become
Oxidised
What does oxidation mean
addition Of oxygen
What does reduction mean
Removal of oxygen
What does combustion involve
Oxidation
What does the reactivity series show
How easily metals are oxidised
Where are the most reactive metals on the list and what does it mean
At the top and it means they are oxidised easily
Where are the less reactive metals in the list and what does it mean
At the bottom and it means there more resistant to oxidation
How can you determine a metals position in the reactivity series
By reacting it will water and dilute acid
What is the test for hydrogen
Burning splint test
What are displacement reactions
Redox actions
What is oxidation the loss of
Electrons
what is reduction the gain of
Electrons
What happens in displacement reactions
A more reactive element reacts to take the place of the less reactive element
During a displacement reaction what happens to the more reactive metal
It becomes oxidised
In a displacement reaction what happens to the less reactive metal
It become reduced
Where are most metals from
The ore of the earths crust
How are some metals extracted
By reduction with carbon
Metals that are higher then carbon in the reactivity series have to be extracted by what
Electrolysis
How do metals below carbon extracted
Reduction with carbon