Balancing Redox Reaction By Oxidation Number HW
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1)
1) Al
(s)
+ MnO
2(s)
--> Al
2
O
3(s)
+ Mn
(s)
2) HNO
3(aq)
+ H
2
S
(g)
--> S
(s)
+ NO
(g)
+ H
2
O
(l)
3) CH
4(g)
+ O
2(g)
--> CO
2(g)
+ H
2
O
(l)
4) K
2
Cr
2
O
7(aq)
+ HCl
(aq)
--> KCl
aq)
+ CrCl
3(aq)
+ H
2
O
(l)
+ Cl
2(g)
Balance the following Redox reactions using the line method.. Show all work including all oxidation numbers, which species are oxidized and reduced, oxidation/reduction agents, correct coefficients.
1) Al
(s)
+ MnO
2(s)
--> Al
2
O
3(s)
+ Mn
(s)
2) HNO
3(aq)
+ H
2
S
(g)
--> S
(s)
+ NO
(g)
+ H
2
O
(l)
3) CH
4(g)
+ O
2(g)
--> CO
2(g)
+ H
2
O
(l)
4) K
2
Cr
2
O
7(aq)
+ HCl
(aq)
--> KCl
aq)
+ CrCl
3(aq)
+ H
2
O
(l)
+ Cl
2(g)
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Last edited February 22, 2010 11:18 am
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