02_maingroup

02_maingroup - Chapter21&22:Reactionswithalkali metals...

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metals Hydrogen 2M(s) + H 2 (g) ----> 2MH(s) oxygen 4Li(s) + O 2 (g) ----> 2Li 2 O 2Na(s) + O 2 (g) ----> Na 2 O 2 M(s) + O 2 (g) ----> MO 2 (s) O 2- O 2 2-  peroxide O 2 -  superoxide nitrogen 6Li(s) + N 2 (g) ----> 2Li 3 N(s) halogen 2M(s) + X 2 (g,l,s) ----> 2MX(s) water 2M(s) + 2H 2 O(l) ----> 2MOH(aq) + H 2 (g) Li 2 O Na 2 O 2 KO 2 Li Na K
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Carbonates • Li 2 CO 3  is unstable relative to the oxide. Used to treat manic depression (1-2 g/day).   • Na 2 CO 3   primarily used to manufacture glass. Currently mined from rich U.S. resources but can be  manufactured by the Solvay process. Li 2 CO 3  --->  Li 2 O  + CO 2
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Group 2: The alkaline earth metals Typically all chemistry dominated by the +2 oxidation state Because of the electronic configuration (ns 2 )---> reactive Ca(s) + 2H 2 O(l) ----> Ca(OH) 2 (aq) + H 2 (g) 
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Group 2
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This note was uploaded on 10/27/2009 for the course CHE 2C taught by Professor Enderle during the Spring '08 term at UC Davis.

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02_maingroup - Chapter21&22:Reactionswithalkali metals...

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