Extraction and use of metals Flashcards
1
Q
Know that most metals are extracted from ores
A
Unreactive metals are usually found uncombined
2
Q
Extraction examples
A
carbon extraction for iron
electrolysis for aluminium
3
Q
Comment on metal extraction process
A
I have literally no idea or time
4
Q
Explain uses of aluminium, copper, iron and steel
A
Aluminium - aircrafts, low density/resists corrosion
Copper - electrical wires - ductile/good conductor
Iron - buildings - strong
Steel - cuterlery (change)
5
Q
What is an alloy
A
A mixture of two or more elements, where at least one is a metal
6
Q
Why are alloys harder than metals
A
Takes greater force for layers to slide
7
Q
A
