Topic 5: Separate Chemistry 1 Flashcards
1
Q
What results in corrosion?
A
The oxidation of metals
2
Q
What is rusting?
A
The corrosion of iron and steel
3
Q
What does rusting need?
A
Iron, oxygen and water
4
Q
How can you prevent rust?
A
By painting the metal, which would stop water and oxygen coming into contact with the metal
or
Using oil or grease to stop oxygen and water since it is more dense
or
Coating the metal with plastic as it is a physical barrier
5
Q
What can electroplating do?
A
Improve a metal’s appearance or its resistance to corrosion
6
Q
What is an alloy?
A
A mixture of a metal with one or more other elements
7
Q
What are the uses of stainless steel and why is it a good material?
A
It can be used to make cutlery, dishwashers and washing machine drums and it is a good material since it is resistant to corrosion
