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Corrosion is the reverse of the change of state in your question.

Rust is corroded metal [ iron, steel ].

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Q: What type of change is rust formed into iron after exposure to air?
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Rust Fe2O3 forms on an iron Fe pipe after prolonged exposure to humid air What type of change does this illustrate?

Rust forms on an iron pipe after prolonged exposure to humid air. What type of change does this illustrate


Rust forms on an iron pipe after prolonged exposure to humid air What type of change does this has?

Rust formation is an oxidation reaction, which is a chemical change.


Is iron tendency to rust when exposed is exposed to oxygen and water chemical change?

First of all rust is formed when iron is exposed to both oxygen and water/ water vapopurs. The formula for rust is Fe203.xH20. Now the x varies which determines the extent to which rust is formed. Basically Rust is formed throughout the surface of the iron thus preventing rusting of the inner layers.


What causes iron changing to rust when it reacts with water?

Iron will begin to rust after exposure to water. The reaction that happens to cause rust is due to the iron oxidizing.


What will make iron rust?

Exposure to oxidizers will make iron rust. The most common source of an ozidizer is water, so long term exposure to water will cause rust. Direct exposure to oxidizers such as oxygen or iodine in the air will also do this. Salt absorbs water and so will cause iron to rust if in contact with it.


The process of iron combining with oxygen to form rust is considered a chemical change because rust has?

Because after this chemical reaction a new compound is formed - iron oxide.


Is rust forming on an iron nail a chemical change?

Yes. Rust on anything is always a chemical a change because a new substance is being formed.


Why and how rust happened?

Rust is a general term for iron oxides. It is formed from the reaction of Iron and water.


Why rusting of iron is chemical change?

Yes. Iron corrodes because oxygen ions attach to iron atoms to make iron oxide


How does the paint on a car help to keep it from rusting?

It covers the steel, which is mostly iron, so that it is not exposed to oxygen in the air. Rust is iron oxide, a compound formed when iron reacts with oxygen in the atmosphere. If the steel is not exposed to oxygen, it will not rust.


Why iron rust is chemical change?

The reason that rust is considered a chemical change is because the "connections" or the bonds of atoms are changed in the process. When atoms "rearrange themselves" by changing the "connections" or bonds to allow different compounds to be formed, as is the case with the formation of rust, a chemical change has taken place.


Rust is formed as a result of oxidation of which metal?

Rust is formed as a result of oxidation of iron (Fe) metal.