Why does cast iron rust?

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Why does cast iron rust?

I know it oxidizes, but what exactly happens on a chemical level?

2006-08-10 10:30:57 · 4 answers · asked by Teresa D 1 in Science & Mathematics ➔ Other - Science

4 answers

one iron atom loses two electrons which go to one oxygen atom. electrons are negatively charged; more charge in oxygen, positive and negative attract, iron and oxygen attracted together.
RUST!

2006-08-10 10:37:13 · answer #1 · answered by Anonymous · 1⤊ 0⤋

Oxidation.

2006-08-10 10:54:54 · answer #2 · answered by Carol R 7 · 0⤊ 0⤋

At the molecular level iron oxidizes and oxygen reduces. These ions are then attracted to each other and they become hematite, FeO.

2006-08-10 12:39:28 · answer #3 · answered by Amphibolite 7 · 0⤊ 0⤋

It oxidizes.

2Fe + O2 = 2FeO

2006-08-10 10:35:45 · answer #4 · answered by astarpilot2000 4 · 0⤊ 1⤋