What is the difference between rust and corrosion? (10 poionts!!)?

Question

What is the difference between rust and corrosion? (10 poionts!!)?

Answer 1

Rust is the corrosion of iron.  

Iron + oxygen => iron oxide

Corrosion is a more general term which refers to the oxidation of to any metal, such as copper, aluminum, silver, etc.  

With many metals corrosion produces a layer of metal oxide and that is it.  The especially bad consequence of rust is the fact that it does not stop at the surface of the metal, since iron oxide (red in color) tends to form flakes which come off, exposing deeper layers to rusting.  In time this can be disastrous as in the collapse of structures such as bridges and the development of holes in car bodies.  

The reddish color of some soils and some rocks is largely due to the presence of iron oxide.  Iron ore is inevitably reddish in color.  

Answer 2

Rust forms when firearms are exposed to moisture either from the environment or through handling. Moisture combined with salt is particularly damaging. If this condition is left unattended, corrosion or pitting will occur, marring the appearance and possibly the function of your firearm.

Answer 3

When a metal corrodes it develops oxides of different colors. Rust it the name given to the oxides that forms when Iron corrodes.

So the difference between Rust and Corrosion is:

Corrosion is the name of the process of degradation of metals. When talking about corrosion of Iron the results of the corrosion process is Rust (Iron oxides).

Fe (iron) + H2O (water) + O2 (oxygen) -----> Fe2O3 (red iron oxide called Rust)

Hope this help

Answer 4

Rust is only use for iron. Corrosion is in general of breaking down of essential properties in materials due to chemical reaction with it's surrounding.  

Answer 5

Rust IS an example of corrosion!

Answer 6

Corrosion of Fe is rust but corrosion of other metals are not rusts.

Answer 7

Corrosion is the broad term for something that something is being broken down due to chemical reaction. For example dis colorization of a painted object that has been in the sun. You can see some red cars turn pink in time if not take care of.

Rust is a specific type of corrosion that consists of iron being reacting with water (or moist air) causing iron oxides.  

Answer 8

Rust is a chemical (Fe2O3) while corrosion is a process in which rust is formed (on iron).

If you talk about "Rusting" and "Corrosion", then the only difference between them is that rusting is a process of corrosion named for (only for) iron. While corrosion is a process named for each and every element (which can corrode).