Oxygen - Oxygen

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Oxygen Oxygen is a group 6A element. Elemental Oxygen is found in two forms: oxygen gas (O 2 and and ozone gas (O 3 ). Different forms of an element in the same state are  called  Allotropes . Reactions between Oxygen and Metals When oxygen reacts with most metals a metal oxide is formed where oxygen has an  oxidation state of -2. For example, zinc oxide is formed when zinc metal reacts with  oxygen gas: 2 Zn (s)  + O 2 (g)    2 ZnO (s) and aluminum oxide is formed when aluminum metal reacts with oxygen gas: 4 Al (s)  + 3 O 2 (g)    2 Al 2 O 3(s) There are, however, some exceptions, which we consider next. Group IA Metals - Alkali Metals Because alkali metals are so active, the product of their reaction with oxygen gas is not  what you might expect. While lithium metal reacts with oxygen gas to form lithium  oxide, as one might expect: 4 Li
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This note was uploaded on 11/22/2011 for the course CHEMISTRY CHM1025 taught by Professor Laurachoudry during the Fall '10 term at Broward College.

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Oxygen - Oxygen

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