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Water and oxygen are both needed. Without either one the iron will not rust.
ANSWER:oxygen and water
Whenever water or air is around iron for a while it can rust because the iron bonds to the oxygen forming iron oxide.
iron is needed for healthy blood
the exposure of water or moisture to the iron nail will convert the element to fe+3
All you need is water and iron the oxygen itself is not enough to create rust so you will need to use the water.
iron no other materials are needed
The iron age started around 1200 BC. There were people who used iron back around 5000 years ago, but they didnt use it as a primary metal. When they did make it 5000 years ago, they would hit the iron against a rock to form the shape that was needed. But during 1200 BC they would put it in a fire just to get it hot enough so that if they hit it with a hammer, it could take a shape. They got iron from digging it up just like we do today. Alot of the Earths crust is filled with iron so it is easy to get. But then again iron wasnt as strong as bronze until they made steeled iron. Hope this helped.
its, IRON
No.It is oxygen that is the gas needed to turn metallic iron into iron oxide (otherwise known as rust). Water and some form of electrolyte are also required to perform the electrochemical reaction.
Iron doesn't contain water.
Iron is needed to produce iron sulphate.