IRON NAILS
RUSTED IRON TAILS
1. Is rusting of iron nails an example of chemical reactions?
2. How does rusting of iron nails result from a chemical reaction?
3. Identify the evidence if chemical reaction involves in rusting of iron nails?
RUSTED IRON TAILS
1. Is rusting of iron nails an example of chemical reactions?
2. How does rusting of iron nails result from a chemical reaction?
3. Identify the evidence if chemical reaction involves in rusting of iron nails?
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Answer:
1. As the rust forms on the surface of the iron, it flakes off to expose more iron, which will continue to rust. Rust is clearly a substance that is different from iron. Rusting is an example of a chemical change.13 Aug 2020
2. 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.
3. Chemical Causes of Rusting
Water can combine with carbon dioxide in the air to form carbonic acid, a weak acid. When this acidic solution reaches iron, two reactions occur. ... Free oxygen reacts with dissolved iron to form iron oxide, and iron oxide is rust.