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A rock containing iron becomes soft and crumbly and reddish-brown in color?
Wiki User
∙ 12y ago
Oxygen!
Which has probably come from water (H2O = 2 hydrogens and 1 oxygen)
This process is called oxidisation, it is the same thing that happens when you have metal that has gone rusty, it has oxidised.
The chemical symbol for iron is Fe, when it oxidises, it steals an oxygen molecule and becomes FeO... Iron Oxide.
Wiki User
∙ 14y ago
THE UNKNOWN
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