Ace What Happens To An Iron Nail When It Rusts
This actually protects the metal from further corrosion by slowing the rate of oxidation.
What happens to an iron nail when it rusts. The mass of iron increases as rusting happens when oxygen combines with iron therefore the mass increases. For example when an iron is exposed to moist air it reacts with oxygen to form rustFe2O3. Indeed at the pH of Coca Cola all that happens to the iron is that it is oxidized to ironII Fe2 and the hydrogen is reduced to hydrogen gas.
Rusting is the oxidation of metal whereby the oxygen in the environment combines with the metal to form a new compound called a metal oxide. The water reacts with the iron by stealing two electrons from the iron leaving it positively charged. It is possible to decompose these bonds by applying heat but this wont give the pure metal it will simply give a mixture of very hot.
Distilled water is free from impurities but dissolved oxygen will be present but in ppm level. The corrosion of iron indicates a chemical change in the metal. Since the iron oxide is a bulkier molecule than the original iron it takes up more space and this distorts the shape of the nail as it rusts.
Rust is iron oxide. When rusting occurs it leads to an increase in the mass of the object. A thin film of oxide forms on the iron.
Furthermore what conditions cause iron nails to rust faster. What happens then to the total mass of the nail. Iron nails before and after exposure to oxygen in dry cloth did not change in color and has no rust.
The first is known as anodic dissolution which takes place when the iron in the nail is exposed to water. If you use flat Coca Cola - a. A well-known but undesirable reaction takes place when iron is brought into proximity with water and oxygen.