Oxidation numbers.

  • Thread starter ipl
  • Start date
  • #1
ipl
4
0
Determine the oxidation numbers of the underlined elements in the following formulas:?
If you could explain each one, it would be greatly appreciated. Thanks!
a) KClO3
b) NH4+
c) Cr2O72-
d) MnO42-
 

Answers and Replies

  • #3
ipl
4
0
Okay is a) +5 because K=+1 and O=-2? I'm just wondering cause someone posted that on yahoo.
 
  • #4
Borek
Mentor
28,499
2,913
Yep, Cl in KClO3 is +5 (regardless of what was posted on Yahoo).

--
 
  • #5
ipl
4
0
do you think you could explain to me why?
 
  • #6
Borek
Mentor
28,499
2,913
Because it can be calculated following rules from the page I have linked to?

Nothing magic about it. Molecule is neutral, K is +1 (one of the rules), O is -2 (one of the rules), so Cl+1+3*(-2)=0.

--
methods
 

Related Threads on Oxidation numbers.

  • Last Post
Replies
5
Views
649
  • Last Post
Replies
10
Views
11K
  • Last Post
Replies
3
Views
614
  • Last Post
Replies
2
Views
5K
  • Last Post
Replies
3
Views
2K
  • Last Post
Replies
2
Views
2K
  • Last Post
Replies
6
Views
8K
Replies
3
Views
3K
Replies
4
Views
2K
Replies
3
Views
5K
Top