What causes the rusting of iron nails or iron made materials in a wet cloth?
A. Presence of Heat
B. Absence of Heat
C. Presence of Oxygen
D. Absence of Oxygen
A. Presence of Heat
B. Absence of Heat
C. Presence of Oxygen
D. Absence of Oxygen
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Answer:
C. Presence of Oxygen
Explanation:
Rusting is an oxidation reaction. The iron reacts with water and oxygen to form hydrated iron(III) oxide, which we see as rust. Iron and steel rust when they come into contact with water and oxygen – both are needed for rusting to occur.