Quiz on Conditions and Formation of Rusting
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Questions and Answers

condition n formation of rusting Fe3+

oxygen n water formation of brown solid , which is hydrated iron (III) oxide Fe2O3

definition of sacrificial protection

iron is protected by a more reactive metal, act as a barrier to prevent iron from oxygen and water

galvanizing

iron in protected with ZINC metal

*** why steel does not rust even if the layer of zinc is scratched so that steel is exposed to salt n water

<ul> <li>zinc is more reactive than iron</li> <li>zinc losses electron</li> <li>iron gains electron ( prevent iron from becoming an ion)</li> <li>therefore, iron does not lose electron (always stay as atom)</li> </ul> Signup and view all the answers

*** what are the substance that can use to neutralise acidic soil???

<p>calcium oxide, calcium hydroxide, calcium carbonate</p> Signup and view all the answers

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