Rust, oxidation, begins at the surface of iron or steel, and actually penetrates, changing the chemistry of an increasing portion of the metal, and weakening it as it progresses.
*Rust usually refers, specifically, to the oxidation of iron. The general term, for all metals, is corrosion. Corrosion occurs with other metals as well, but the mechanisms and results differ according to the metals and the nature of the reactants involved.
Rusting is an irreversible process.
Yes, it is correct.
No, iron rusting is oxidation process
Oxidation
Most of the metals will oxidize, but the only one for which that process is called "rusting" is iron.
When Iron became in contact with water and oxygen or other strong oxidants or acids the rusting took place. The rusting is an electrochemical process which started with the transfer of electrons form iron to oxygen. If salt is present then it also accelerate the rusting process.
Water boiling is a physical process; also dissolving. Rusting is a chemical process (oxidation).
Yes, the presence of salt can accelerate the process of rusting by increasing the conductivity of water, which speeds up the corrosion of metal.
Accelerating the process of rusting metal overnight can be done by exposing the metal to moisture and oxygen, such as by spraying it with a saltwater solution or placing it in a humid environment. Additionally, you can introduce an acidic substance like vinegar to speed up the rusting process.
Rusting
No, rusting of iron is not a photochemical process. Rusting is a chemical reaction that occurs in the presence of moisture and oxygen, leading to the formation of iron oxide. Photochemical processes involve light as a driving force for chemical reactions.
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