Determine the oxidation state for each of the elements
below.
The oxidation state of
...
iodine
...
in
...
diiodine pentoxide
I2O5
...
is
...
___ .
The oxidation state of
sulfur
in
sulfur trioxide
SO3
is
__
The oxidation state of
bromine
in
bromine trifluoride
BrF3
is
___.
2. (a) Let p be a prime. Determine the number of elements of
order p in Zp^2 ⊕ Zp^2 .
(b) Determine the number of subgroups of of Zp^2 ⊕ Zp^2 which
are isomorphic to Zp^2 .
1) Oxidation refers to...
a) an increase in Oxidation number. b) a decrease in Oxidation
number. c)an increase in atomic number. d) an increase in mas.
1. What is the oxidation number for each of the elements in
Cu(NO3)2?
2. What is the oxidation number for each element in MgCr2O7?
3. The oxidation number of
a. any substance is the charge of the substance
b. an uncombined element is zero
c. hydrogen is +2 when combined with nonmetals
d. none of the above is correct
4. The oxidation numbers of ______ are equal to their ionic
charges.
5. The term oxidation can be used to describe...
Determine the oxidation number of iodine in each of the
following compounds. Be sure to enter your answer as X+ or X-
(a)NaI
(b)I2
(c)IO2
(d)I2O7
(e)KIO4
(f)Ca(IO)2
Determine the coordination number and oxidation number of the
metal in each molecule: 1) [Co(en)2Cl2]SCN ; 2) Na2[PdBr6] ; 3)
[Pt(en)2](ClO4)2 ; 4) [Co(NH3)4(OH2)2]Cl3.
In each of the following balanced oxidation-reduction equations,
identify those elements that undergo changes in oxidation number
and indicate the magnitude of the change in each case
Part A
2MnO4−(aq)+3S2−(aq)+4H2O(l)→3S(s)+2MnO2(s)+8OH−(aq)
Enter your answers as chemical symbols separated by a comma.
Part C
4H2O2(aq)+Cl2O7(g)+2OH−(aq)→2ClO2−(aq)+5H2O(l)+4O2(g)
Enter your answers as chemical symbols separated by a comma
Ba2+(aq)+2OH−(aq)+H2O2(aq)+2ClO2(aq)→Ba(ClO2)2(s)+2H2O(l)+O2(g)
Enter your answers as chemical symbols separated by a comma