Chapter 16 - Extraction and corrosion of metals Flashcards

1
Q

Rust is

A

hydrated iron oxide
(reaction between moisture, oxygen and iron)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Common barrier methods
(prevent corrosion)

A

Oiling, Painting, galvanising, electrolysing, plastic coatings

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

sacrificial protection in barrier methods

A

layered with a more reactive substance which reacts before the other one can

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

CaCl

A

drying agent

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

hematite

A

major ore of iron (Fe2O3)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

slag

A

molten mix of impuritues formed in blast furnace

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly