南京大学大学化学课件第十章.pdf
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10
10.1
(The primary concepts of redox reactions)
1) 18
2) 191852(E. Edward
Frankland, 1825- 1899) ()
3) 201916(Walther Kossel,
1888- 1956)( ) 1916-1919
(Gilbert Newton Lewis, 1875-1946)
(Irving Langmuir, 1881-1957)
(oxidization number, oxidization and reduction)
.
Na Cl N H
3
+1 -1 -3 +1
()
()
(the rules for the determination of oxidation number)
(1)
Na, Be, K, Pb, H , O , P = 0
2 2 4
(2) ;
−1
(3) +1, -1 Na H
−1 −1
(4) -2,-1
H O Na O ,
2 2 ` 2 2
−0.5
-0.5K O2 +1+2
+1 +2
O F ,OF
2 2 2
(5)
.
1Na S O Na S O
2 2 3 2 4 6
+2 +2.5
2K Cr O CrO
2 2 7 5
+6 +
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