what is rust ? write its chemical equations
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The reaction or loss of iron in presence of air and moisture is known as rusting of iron.
Reaction: Fe2O3 + ½H2O ---> Fe2O3. ½ H2O
Reaction: Fe2O3 + ½H2O ---> Fe2O3. ½ H2O
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when iron is exposed to moist air for a long period of time,its surface acquires a coating of brown,flaky substance called rust. rust is a mixture of iron (lll) oxide (Fe2 O3) and iron (lll) hydroxide (Fe ( OH)3).
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