Essential Chemistry for IGCSE - Air And Water (Section 2 - No. 1)
What does the formula 4Fe + 3O2 + 2xH2O -> 2Fe2O3.xH2O represent?
The process of photosynthesis
The process of respiration
The formation of hydrated iron(III) oxide
The corrosion of zinc
Explanation
This formula represents the formation of rust, which is hydrated iron(III) oxide.
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