LearningProducesv1

Iron rusts when water and oxygen are present

An electrochemical reaction converts exposed iron into hydrated oxides.

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Output
A brittle reddish-brown layer of rust on the iron
Input
Unprotected iron exposed to oxygen and moisture
Relationship

What connects the input and output?

Different areas of the wet metal surface act as electrochemical sites. Iron loses electrons while dissolved oxygen is reduced, producing iron oxides over time.

Sources

1
  1. www.britannica.com: Iron rusts when water and oxygen are presentwww.britannica.com

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