Metals Flashcards
1
Q
where are metal ores
A
earths crust
2
Q
what are the 2 types of metal ores
A
rock salt, bauxite
3
Q
metal compound for bauxtie
A
aluminium oxide
4
Q
metal compond for rock salt
A
sodium chloride
5
Q
what are the raw materials used in the blast furnace
A
iron ore, coke, limestone and hot air
6
Q
what is coke used for in the blast furnace
A
a fuel to produce carbon monoxide for reduction
7
Q
what is limestone used for in the blast furnace
A
remove impurities- slag formation
8
Q
what is hot air used for in the blast furnace
A
provides oxygen so that the coke can burn
9
Q
alloys
A
mixture made by mixing moltern metals
10
Q
colour of solution for Fe2+
A
pale green
11
Q
colour of solution for Fe3+
A
brown
12
Q
colour of solution for Cu2+
A
blue
