Metals And Their Uses Flashcards
Where are unreactive metals found?
They are naturally found in the ground
Where are reactive metals found?
In ores
Why aren’t reactive metals found naturally in the ground?
They react with the things around them.
What is the reactivity series?
A list of how reactive metals are.
Iron is extracted from iron …. In a huge container called a ….. ……. . Iron ores contain ….. . The oxygen must be ……. from the iron oxide to leave the iron behind. Reactions in which oxygen is removed are called ……… reactions.
1) ores
2) blast furnace
3) oxide
4) removed
5) reduction
The impurities of iron make it ……. ?
Brittle.
What are steels?
Alloys
Where are transition metals located on the periodic table?
The middle block
What does a thermal conductor do?
Conducts heat
What does ductile mean?
That the metal is easily shaped
What does malleable mean?
It means that it is easily shaped
Why is copper useful for wiring?
It is useful as it is malleable, a good conductor of electricity and strong.
Why must sulphur dioxide not be allowed to escape?
It causes acid rain
Stainless steel is an alloy because it is a ……. Of iron, chromium and nickel.
An alloy is made up of more than one ….. .
Stainless steel alloys are harder than iron because the different sized atoms added change the ……… .
An alloy that can return to its original shape after being deformed is called a …..
1) mixture
2) metal
3) structure
4) smart
