Oxide | Wikipedia audio article
Channel: Subhajit Sahu
Date: 2018-12-25

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Oxide


00:01:11 1 Formation
00:03:25 2 Structure
00:03:46 2.1 Oxides of metals
00:04:23 2.2 Molecular oxides
00:05:44 3 Reduction
00:06:03 3.1 Reduction by carbon
00:07:03 3.2 Reduction by heating
00:07:25 3.3 Reduction by displacement
00:07:50 3.4 Reduction by hydrogen
00:08:10 3.5 Reduction by electrolysis
00:08:43 4 Hydrolysis and dissolution
00:10:53 5 Reductive dissolution
00:11:32 6 Nomenclature and formulas
00:13:04 7 Examples of oxides
00:13:25 8 See also



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SUMMARY
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An oxide  is a chemical compound that contains at least one oxygen atom and one other element in its chemical formula. "Oxide" itself is the dianion of oxygen, an O2– atom. Metal oxides thus typically contain an anion of oxygen in the oxidation state of −2. Most of the Earth's crust consists of solid oxides, the result of elements being oxidized by the oxygen in air or in water. Hydrocarbon combustion affords the two principal carbon oxides: carbon monoxide and carbon dioxide.  Even materials considered pure elements often develop an oxide coating.  For example, aluminium foil develops a thin skin of Al2O3 (called a passivation layer) that protects the foil from further corrosion. Individual elements can often form multiple oxides, each containing different amounts of the element and oxygen.  In some cases these are distinguished by specifying the number of atoms as in carbon monoxide and carbon dioxide, and in other cases by specifying the element's oxidation number, as in iron(II) oxide and iron(III) oxide.  Certain elements can form many different oxides, such as those of nitrogen.