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posted by  Klittleangel4 on 10/11/2007 10:34:40 AM  |  status: Closed  

equation

Course Textbook Chapter Problem
General Chemistry N/A N/A N/A
Question Details:
In the equation Al + Cl2 ---> AlCl3, the oxidation number of Cl changes from ____ to ____.
 
A. 0, 3+
B. 3+, 0
C. 0, 1-
D. -1, 0
 
Thank you!
Karen
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posted by Sara2029 on 10/11/2007 11:20:45 AM  |  status: Live
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Klittleangel4's comment:
"Thank you!"
Response Details:
from o to 3+...
 
we know that Cl has an oxi num of 1-..
thus, the oxi num of Al in AlCl3 is:
 
x + 3(-1)= 0
x=3
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