what is the formula for rust?

Question

what are the elements of corrosion?

Answer 1

well if you have iron and it oxidizes (rusts) then you're left with Fe2 O3 (iron oxide) so we have 2Fe + 3O --> Fe2 O3. any type of oxidation occuring to a metal would make it rust, some metals are just more resistant to oxidation

Answer 2

Fe02 (2 in subscript)
Fe= Iron 1 part
O2= Oxygen 2 parts

Oxygen molecules in, most commonly contributing to rust, water, eventually bond together chemically. The resulting combination creates a chemical reaction that creates corrosion on iron. And since steel contains iron, steel is prone to rusting also, but just unprotected steel. Stainless steel will actually loose it's stainless coating from excessive grinding, cutting, etc. Medical grade steel is much more resistant against rust, as it cannot stick to magnets either.

Answer 3

The formula is fe2o3.xH2o

Rust is the substance formed when iron compounds corrode in the presence of oxygen and water. It is a mixture of iron oxides and hydroxides. Rusting is a common term for corrosion, and usually corrosion of steel.


When steel contacts water, an electrochemical process starts. On the surface of the metal, iron is oxidized to iron(II):

Fe → Fe2+ + 2e−
The electrons released travel to the edges of the water droplet, where there is plenty of dissolved oxygen. They reduce the oxygen and water to hydroxide ions:

4e− + O2 + 2H2O → 4OH−
The hydroxide ions react with the iron(II) ions and more dissolved oxygen to form iron oxide. The hydration is variable, however in its most general form:

Fe2+ + 2OH− → Fe(OH)2
4Fe(OH)2 + O2 → 2(Fe2O3.xH2O) + 2H2O

Answer 4

When iron is exposed to moist air, its surface rapidly gets covered with a layer of reddish brown powdery coating. This coating is called rust.

4 iron atoms+ 3 oxygen atoms give 3 ferric oxides
This ferric oxide when combines with hydrogen forms rust i.e.
Fe2O3.H2O

Answer 5

Rust is formed by the chemical reaction between ::Iron(Fe),Water(H2O) and Oxygen(O2).........and formula for rust are infinetily many ,,this can be explained as follows:::
Rusr is formed by the three molecules combination and the combination can be of variety types but remember always the combination of Iron to Oxygen will be in the ration of 1:1,,,but water can combine in many ways,like 1atom of Iron combines(must be)with 1molecule of Oxygen but can be with any finite nuber of moles of Water thus we can many formule ,like
Fe2O3.H2O or Fe2O3.2H2O or Fe2O3.3H2O or Fe2O3.4H2O...............thus they are infinitely many formula but generally we can reprecent these all formula by one formula.that is Fe2O3.xH2O.....where x =1,2,3,4,5,6........
Have a nice day.................byeeeeeeee

Answer 6

Rust is a complex process, and there are actually several different formulas for the various oxides and hydroxides:

http://en.wikipedia.org/wiki/Rust

Answer 7

Red Rust Fe203 and Black Rust Fe304

Answer 8

Fe2o3 Chemical Name

Answer 9

There are actually numerous versions of "rust" or iron oxide. The most common type is Fe2O3, or hematite.

Answer 10

FeO, Ferrous Oxide.