when an iron nail is kept outside for a long time it gets covered with a powdery substance and loses its shine. What do you think happened? Is it a physical or chemical change?
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1
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it loses its shine because of formation of ferric oxide(rust).it is a chemical change.
Answered by
1
Answer:
when an iron nail is kept outside it come contact with the moisture present in the air and reacts with it to form ferrous oxide or rust....
this is the powdery substance because of which it loses its shine...
it is a chemical change as the properties of the product and the reactants are totally different....
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