Corrosion Flashcards
1
Q
what is corrosion?
A
when a metal is exposed and reacts to oxygen
2
Q
what is an example for corrosion?
A
iron rusting
green stain on copper pipes
3
Q
what is rusting?
A
a type of corrosion where iron is involved.
4
Q
when does rusting occur?
A
when iron exposed and reacts to oxygen and water
5
Q
what is the general equation for rusting?
A
iron + oxygen + water –> hydrogen and iron oxidize (rust)
6
Q
what make beach houses rust quickly?
A
since they are closer to slat water and salt increases rusting
7
Q
why is Australian sand have a rusty color?
A
it is has iron in it
8
Q
what is galvenization?
A
applying a zinc coating on iron to provent rusting
9
Q
what are the ways to prevent rusting?
A
applying a zinc coating
painting the iron
mixing it with other metals
grease
