What is an alloy?
A pure metal
A metal with another metal mixed in
A soft type of metal
How does the structure of an alloy improve its strength?
Different size particles disrupt the metallic structure.
Only strong metals are used.
Alloying does not improve the strength.
Alloying does not improve the properties of a metal and has a big effect on the reactivity.
steel is for cutlery and surgical scalpels but it used for stents to repair damaged arteries.
Lithium is more less( more, less ) reactive than copper or zinc because it is found lost( found, lost ) in Period Group( Period, Group ) 1 7( 1, 7 ) of the reactivity periodic( reactivity, periodic ) table and is therefore a very un-( very, un- ) reactive metal.
Iron can be ❌ from iron oxide by ❌ strongly with ❌. The carbon becomes ❌ in this reaction. Calcium ❌ be extracted in this way because it is ❌ reactive than carbon.
Label the blast furnace.
Which three substances are essential for rusting to take place?
Why does aluminium not corrode as quickly as steel and iron?
It is not very reactive.
It is always painted.
It has a protective layer of aluminium oxide.
Which metal could be used for the sacrificial protection of iron?
Magnesium
Tin
Copper
The delocalised electrons are free to move in metals and these can carry the charge. Positive ions do not move in metallic bonding.
Almost all metals are , which means they can be beaten into .
Aluminium is also known as haemitite bauxite( haemitite, bauxite ). Bauxite Haematite( Bauxite, Haematite ) is a reddish greenish( reddish, greenish ) brown rock that contains aluminium oxide and impurities lead( impurities, lead ).
Limestone is added to the furnace to impurities in the ore. This forms which can be easily .
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