Extracting and Using Metals Flashcards
1
Q
how is Iron made?
A
Iron oxide is reacted with carbon to produce carbon dioxide and pure Iron
2
Q
How is carbon used to get a pure metal?
A
Carbon is heated to displace a less reactive element you can see this 2Fe2O3 + 3C —-> 4Fe + 3CO2
3
Q
We can carbon not be used to extract a metal?
A
When the metal is more reactive than carbon
4
Q
Best solution to extract a metal?
A
Electrolyses
5
Q
What is an alloy?
A
It is a mixture of metals together
6
Q
Are alloys harder than the pure elements why?
A
Yes Alloys are usually harder than its parent metal because the different components present have different sized atoms
