Question

2. rust and ferric oxide / sand and




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Answer 1

Answer:

The exposure of iron (or an alloy of iron) to oxygen in the presence of moisture leads to the formation of rust. ... Iron(II) oxide or ferrous oxide. The oxidation state of iron in this compound is +2 and its chemical formula is FeO. Iron(III) oxide or ferric oxide, where the iron atom exhibits an oxidation state of +3.

Answer 2

Answer:

Rusting is the formation of loosely adhering reddish-brown ferric oxide (Fe2O3) at pores in the tin coating. Rusting may occur during processing because of corrosive water conditions, during storage because of poor warehouse conditions, or during shipment because of poor transportation facilities. Perforations due to exterior corrosion are unlikely even with the thinnest tin-coated plates, but rusty appearance of cans, especially rust spotting through paper labels, is very objectionable.

Explanation: