2006-07-08 05:17:33 · 6 answers · asked by rohan j 1 in Science & Mathematics ➔ Chemistry
Iron does react with oxygen at room temp. This reaction is a chemical reaction that results the rust. Same thing happens with Calcium. Except with calcium the "rust" is a white powder. Its all about the electrons.
2006-07-08 05:26:25 · answer #1 · answered by firerookie 5 · 0⤊ 0⤋
The reaction of oxigend with iron at room temperature comes to an end similar as is done with aluminium: The surface is covered with a layer of oxide, which is that thin, that still you can see the gloss of the metal through it.
But if is added water, this produces in combination with dissolved oxigen the rust, which has a spongue like structure and weakens the oxide layer. Now like a Trojan hourse the oxigen step by step can destroy the whole piece of iron.
If you e. g. put iron in distilled water, which you before bubble nitrogen through (= absence of oxigen), the iron wil NOT rust.
2006-07-08 15:50:49 · answer #2 · answered by consultant_rom 3 · 0⤊ 0⤋
At room temperature the iron reacts to the water in the air, this reaction can take place at much lower temperatures.
2006-07-08 12:27:37 · answer #3 · answered by Patrick B 3 · 0⤊ 0⤋
of course iron can react with oxygen at room temperature
the reaction is slower than it would be at higher temperatures
as you point out, rusting occurs at room temperature
2006-07-08 12:59:11 · answer #4 · answered by enginerd 6 · 0⤊ 0⤋
Needs the presence of water for rusting to take place. Doesn't matter what temperature it is.
2006-07-08 12:19:39 · answer #5 · answered by Galaxy 3 · 0⤊ 0⤋
it need to heat...then it will react with the O2.
2006-07-08 13:21:55 · answer #6 · answered by San 2 · 0⤊ 0⤋