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8/13/2019 ++++Chem 161-2008 Chapter 4B-Types of Chem Reactions &Soln Stoic Practice Problems
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CHEM 161-2007
CHAPTER 4B - CHEMICAL REACTIONS IN AQUEOUS SOLUTIONS
PRACTICE PROBLEMSDR. ED TAVSS
Oxidai!"-R#d$%i!" Rx"&
1
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Oxidai!"-R#d$%i!" Rx"&
'. C(#) 161-2007 *i"a+ #xa)Hi++, P#$%%i # a+.
CHAPTER 4B - CHEMICAL REACTIONS IN AQUEOUS SOLUTIONS
Oxidai!"-R#d$%i!" Rx"&
C!"&id# (# !++!/i" !xidai!"-#d$%i!" #a%i!"
CH4g3 NO2g3 5 N2g3 CO2g3 H2Ol3
(i%( ! (# !++!/i" &a#)#"& i& $# a!$ (# #a%i!" a!8#9
A. N2i& (# !xidi:i" a#".
B. CH4i& (# #d$%i" a#".C. O i& #d$%#d.
D. N i& !xidi:#d.E. H2O i& #d$%#d.
D##)i"# (# !xidai!" "$)#& ! #a%( #+#)#"-4 1 4 -2 0 4 -2 1 -2
C H4g3 N O2g3 5 N2g3 C O2g3 H2 Ol3
Oxidai!" i& a" i"%#a i" !xidai!" "$)#. Si"%# C /#" !) -4 ! 4, i /a&!xidi:#d.
R#d$%i!" i& a #d$%i!" i" !xidai!" "$)#. Si"%# N /#" !) 4 ! 0, i /a&
#d$%#d.
A. *a+. Si"%# (# C i" CH4/a& !xidi:#d, (#" NO2i& (# !xidi:i" a#".*$(#)!#, !xidi:i" a"d #d$%i" a#"& a# a+/a;& #a%a"&, "!
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7 C(#) 161-2007 Exa) I
Hi++, P#$%%i # a+., 4(#dii!"C(a
B. > a"d ? !"+;
C. @ !"+;
D. ? a"d @ !"+;E. >, ? a"d @
> -4 > -4
N O2 5 N O2-
> 4 0 > 4 -1
> 4 > '
Oxidai!" i& a" i"%#a i" !xidai!" &a#. I" (i& #a%i!" (# !xidai!" &a# ! N d#%#ad.
1 > -6 > -6
H N O' 5 N O'-
1 > -6 0 > - 6 -1> >
T(i& i& "! %(a"# i" !xidai!" &a# ! a"; a!) (##!#, (# "i!#" /a& "! !xidi:#d.
> ' > -2
N H' 5 N O
> ' 0 > 2 0> -' > 2
T(# !xidai!" &a# ! N i"%#ad (##!#, (i&
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21 C(#) 161-2007 Exa) I
Hi++, P#$%%i # a+., 4(#dii!"C(a. *a+. T(# C$&3 i& !xidi:#d !xidai!" "$)# i"%#a&3, &! i i& a #d$%i" a#".
?. T$#. T(# !xidai!" &a# ! N %(a"#& !) ! 2.
@. *a+. T(# (;d!#" i!"& )ai"ai" a" !xidai!" &a# ! 1. T(##!#, (#; a# "!!xidi:#d.
4
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46 C(#) 161-2006 *i"a+ Exa)
C(a
A. SO2 Oxidai!" &a# ! S -4 > 0 > 4.
B. H2SO' Oxidai!" &a# ! S 2 > -6 0 > 4C. H2S2 Oxidai!" &a# ! S 2 2> 0 > -1
D. H2S Oxidai!" &a# ! S 2 > 0 > -2
E. H2SO4 Oxidai!" &a# ! S 2 > - 0 > 6
E
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CHEM 161-2006 E>AM II
HILL F PETRUCCI CHAPTER 4
T?PES O* CHEMICAL REACTIONS AND SOLUTION STOICHIOMETR?
O>IDATION-REDUCTION REACTIONS
16. A
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. (i%( ! (# !++!/i" #a%i!"& a# !xidai!"-#d$%i!" #a%i!"&9
>. C$&3 2Aa=3 2A&3 C$2a=3
?. CaCO'&3 CaO&3 CO23
@. Aa=3 C+-a=3 AC+&3
a3 ? a"d @ !"+;
(b) > !"+;%3 > a"d @ !"+;
d3 @ !"+;#3 >, ?, a"d @
0 1 0 2
>. C$&3 2Aa=3 2A&3 C$2a=3
T(# C$ i& !xidi:#d !) a" !xidai!" &a# ! 0 ! 2.
T(# A i& #d$%#d !) a" !xidai!" &a# ! 1 ! 0.T(##!#, (i& i& a" !xidai!"-#d$%i!" #a%i!".
2 4 -2 2 -2 4 -2
?. Ca2 C O'32-&3 Ca2 O2-&3 C O23
T(## i& "! %(a"# i" (# !xidai!" &a# ! a"; a!). T(##!#, (i& i& "! a" !xidai!"-#d$%i!" #a%i!".
1 -1 1 -1
@. Aa=3 C+-a=3 A C+-&3
T(## i& "! %(a"# i" (# !xidai!" &a# ! a"; a!). T(##!#, (i& i& "! a" !xidai!"-#d$%i!" #a%i!".
7
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10 C(#) 161-200 H!$+; Exa) II
C(a
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1' C(#) 161-200 H!$+; Exa) II
C(a
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4' C(#) 161-200 *i"a+ #xa)CHAPTER 4 - REACTIONS AND SOLUTION STOICHIOMETR?Oxidai!"-R#d$%i!" Rx"& C!"&id# (# !++!/i" !xidai!"-#d$%i!" #a%i!"
SiC+4l3 2Ms3 5 2MC+2s3 Sis3
(i%( ! (# !++!/i" &a#)#"& i& $# a!$ (# #a%i!" a!8#9
A. Si i& (# !xidi:i" a#".
B. SiC+4i& (# #d$%i" a#".
C. M i& !xidi:#d.D. MC+2i& #d$%#d.E. C+ i& (# #d$%i" a#".
-1 0 -1 0
Si C+4l3 2Ms3 5 2MC+2s3 Sis3
4 -4 0 2 -2 0
A. *a+. A+(!$( Si i& #d$%#d !) a" !xidai!" &a# ! 4 ! a" !xidai!" &a# ! 0, Sii& "! (# !xidi:i" a#". T(# %!"8#"i!" i& (a (# %!)
E. *a+. C+ i& "#i(# !xidi:#d "! #d$%#d (##!# i i& "#i(# a" !xidi:i" "! a#d$%i" a#". *$(#)!#, !"+; a %!)
A. Ox;#" i" +#ad !xid# i& #d$%#dB. Ca!" )!"!xid# i& (# !xidi:i" a#"
C. Oxidai!"-#d$%i!" i& "! i"8!+8#d i" (i& #a%i!"
10
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D. Ca!" i" %a!" )!"!xid# i& !xidi:#dE. L#ad !xid# i& (# #d$%i" a#"
Oxidai!" &a#& 2 -2 2 -2 0 4 -2
PO&3 CO3 P&3 CO23
A. I"%!#%. T(# !x;#" i" +#ad !xid# i& "#i(# !xidi:#d "! #d$%#d.B. I"%!#%. *! (# CO ! # (# !xidi:i" a#", #i(# (# C ! O (a& ! # #d$%#d.
H!/#8#, "#i(# i& #d$%#d. T(# C i& !xidi:#d a"d (# O i& "#i(# !xidi:#d "!
#d$%#d.C. I"%!#% Si"%# (# P i& #d$%#d a"d (# C i& !xidi:#d, (i& i& a" !xidai!"-
#d$%i!" #a%i!".
D. C!#% I" !i" !) a" !xidai!" &a# ! 2 ! a" !xidai!" &a# ! 4, (#%a!" i& !xidi:#d. (#" (# !xidai!" &a# i& J#d$%#dK, (# a!) i& J#d$%#dK /(#"
(# !xidai!" &a# i"%#ad, (# a!) i& !xidi:#d.3
E. I"%!#% *! (# PO ! # (# #d$%i" a#", #i(# (# P ! O i" PO "##d& !# !xidi:#d, /(i%( did" (a
A. > a"d @ !"+;
B. > !"+;
C. >, ?, a"d @
D. ? a"d @ !"+;E. ? !"+;
R#d$%i!" i& a #d$%i!" i" !xidai!" &a#. ' -2 1 ' -2
>. P4 O6H P O'2-
4> -12 1 > -6
11
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4> - 12 0 1 > -6 -2
> ' > '
' -2 -' 1
?. P4 O6 P H'
4> -12 > '
4> -12 0 > ' 0
> ' > -'
' -2 1 ' -2
@ P4 O6 H' P O' 4> -12 ' > -6
4> -12 0 ' > -6 0> ' > '
@UMDAHL THEDITION
CHEM 161-2002 RECITATION THEEGCHAPTER 4 - T?PES O* CHEMICAL REACTIONS AND SOLUTION STOICHIOMETR?
O>IDATION-REDUCTION REACTIONS
4-7
A&&i" !xidai!" &a#& ! a++ a!)& i" #a%( ! (# !++!/i"
%!)
O -2
1 > -2x43 0
> M" 7
. NiO2O -2
> 2 x -23 0
> 4
12
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d. NH432HPO4
T/! /a;& ! d! (i&13 Sai(!/ad a%%!di" ! (# $+#&
H 1
O -2
N -'
2 x -' 4 x 133 1 > 4 x -23 0
>
23 NH4%a" # %!"&id##d a& a )#a+ i" !$< 1, /i( a" !xidai!"&a# ! 1.
T(##!#, &i"%# H 1,
(#" N -'
O -2
2 x -' 4 x 13 1 > -2 x 43 0
> P
. Na2C2O4
Na 1
O -2
2 x 13 2> 4 x -23 0
> C '
1'
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@UMDAHL THEDITION
CHEM 161-2002 RECITATION THEEG
CHAPTER 4 - T?PES O* CHEMICAL REACTIONS AND SOLUTION STOICHIOMETR?O>IDATION-REDUCTION REACTIONS
4-61 - S
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O #d$%#d !) -1 ! -2. T(##!# H2O2/a& #d$%#d a"d i& a"
!xidi:i" a#".
CHEM 161-1 *INAL E>AM ANSERS
CHAPTER 4 - T?PES O* CHEMICAL REACTIONS AND SOLUTION STOICHIOMETR?
O>IDATION-REDUCTION REACTIONS12. A++ (# #a%i!"& #+!/ a# !xidai!"-#d$%i!" #a%i!"& #x%# H2S04
A. SO3 B. H2O C. H2S04 D. S in S03
E. Nothing is oxidized or reduced.
11. CHEM 161-2000 E>AM 2CHAPTER 4 - T?PES O* CHEMICAL REACTIONS AND SOLUTION
STOICHIOMETR?
O>IDATION-REDUCTION REACTIONS(i%( ! (# !++!/i" #=$ai!"& #
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. 2Na&3 C+232NaC+&3
>. CaC+2&3 Ca2
a=3 2C+-a=3
?. CaCO'&3 CaO&3 CO23
@. 2A+&3 *#2O'&3 2*#&3 A+2O'&3
A. > a"d ? !"+;
B. a"d @ !"+;C. ? a"d @ !"+;
D. > a"d @ !"+;E. a"d ? !"+;
CHEM 161-2000 *INAL E>AM ANSERS
CHAPTER 4 - T?PES O* CHEMICAL REACTIONS AND SOLUTION STOICHIOMETR?
O>IDATION-REDUCTION REACTIONS
44. (i%( !"# ! (# !++!/i" &a#)#"& i& %!#% #adi" (# #=$ai!" #+!/9
N2O43 2N2H43 - 'N23 4H2O3
A. N2O4i& #d$%#d ! N2.
B. N2H4i& !xidi:#d ! N2.
C. N2O4i& (# !xidi:i" a#". D. N2H4i& (# #d$%i" a#"
E. Ci%+# (i& a"&/# i a++ (# !(# %(!i%#& a# %!#%.
CHEM 161-2001 E>AM II ANSERSCHAPTER 4 - T?PES O* CHEMICAL REACTIONS AND SOLUTION STOICHIOMETR?
O>IDATION-REDUCTION REACTIONS2. (i%( ! (# !++!/i" #=$ai!"& a# !xidai!"-#d$%i!" #a%i!"&9
. N2O'3 H2O+3 - 2HNO2a=3
>. P2a=3 2I-a=3 - PI2&3 ?. PC+'3 C+23 - PC+3
@. 2H23 O23- 2H2O+3
A. a"d ? !"+;
B. a"d > !"+;
C. a"d @ !"+; D. > a"d @ !"+;
E. ? a"d @ !"+;
A"&/# E
Oxidai!" N!. ' -2 1 -2 1 ' -2
16
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N2 O'3 H2 O+3 - 2H N O2a=3
N! %(a"#& i" !xidai!" "$)#.
2 -1 2 -1
P2a=3 2I-a=3 - P I2&3
N! %(a"#& i" !xidai!" "$)#.
' -1 0 -1
P C+'3 C+23 - P C+3P(!&$N2+ #H20% &hich is the reducing "gent'A. NOB. N2C. H2O
D. NH3
(. None% this isn)t " redox re"ction.
CHEM 161-2001 SUMMER-E>AM I ANSERS
@UMDAHL CHAPTER 4 - T?PES O* CHEMICAL REACTIONS AND SOLUTION
STOICHIOMETR?
O>IDATION-REDUCTION REACTIONS11. I" (# !++!/i" !xidai!"-#d$%i!" #a%i!", /(i%( &$&a"%# i& (# !xidi:i" a#"9
C$S&3 HNO'a=3 5 C$NO'32a=3 H2O+3 NO3 S&3
A. C$S
B. SC. NO
D. HNO'E. H2O
17
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7. CHEM 161-2002 E>AM II ANSERS
CHAPTER 4 - T?PES O* CHEMICAL REACTIONS AND SOLUTION
STOICHIOMETR?O>IDATION-REDUCTION REACTIONS
(i%( ! (# !++!/i" #=$ai!"& a# !xidai!"-#d$%i!" #a%i!"&9
>. SO23 H2Ol3 H2SO'a=3SO2 > 2 x -233 0 > 4 O -2, a"d S 4
H2O 2 x 13 >3 0 > -2 H 1, a"d O -2H2SO' 2 x 13 ' x -23 >3 0 > 4 H 1, a"d O -2, a"d S 4
T(## i& "! %(a"# i" !xidai!" &a# ! a"; a!) i" !i" !) (# +# &id# ! (#
#=$ai!" ! (# i( &id# (##!#, (i& i& "! a" !xidai!"-#d$%i!" #a%i!".
?. 2A&3 C+232AC+&3
A A 0
C+2 C+ 0
AC+ -1 > 0 > 1 C+ -1, a"d A 1A %(a"#d !) 0 ! 1 C+ %(a"#d !) 0 ! -1. T(i& i& a" !xidai!"-#d$%i!"
#a%i!".
@. Aa=3 C+-a=3 AC+&3
A A 1C+- C+- -1
AC+ -1 >3 0 > 1 A 1, a"d C+ -1
T(## i& "! %(a"# i" (# !xidai!" &a# ! A ! C+ i" !i" !) (# +# &id# ! (##=$ai!" ! (# i( &id#. T(##!#, (i& i& "! a" !xidai!"-#d$%i!" #a%i!".
A. > a"d ? !"+;B. > !"+;
C. >, ?, a"d @
D. ? !"+;E. @ !"+;
20. CHEM 161-2002 E>AM II ANSERS
CHAPTER 4 - T?PES O* CHEMICAL REACTIONS AND SOLUTION
STOICHIOMETR?
O>IDATION-REDUCTION REACTIONSI" /(i%( ! (# !++!/i" )!+#%$+#& ! i!"& d!#& "i!#" (a8# a" !xidai!" &a# ! '9
A. NH4
4 x 13 > 1
> N -'
B. NH'
1
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' x 13 > 0
> -'
C. NO22 x -23 > 0
> 4
D. NO2-
2 x -23 > -1
> '
E. NO'-
' x -23 > -1
>
CHEM 161- 2002 *INAL E>AM ANSERS
CHAPTER 4 - T?PES O* CHEMICAL REACTIONS AND SOLUTION STOICHIOMETR?
O>IDATION-REDUCTION REACTIONS
44. C!"&id# (# #a%i!" *#2O'&3 'H23 5 'H2O+3+2*#&3
(i%( !"# ! (# !++!/i" &a#)#"& i& %!#%9
A. H;d!#" i& #i" !xidi:#d.C!#%. I (# !xidai!" &a# !#& $
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CHAPTER 4 - T?PES O* CHEMICAL REACTIONS AND SOLUTION STOICHIOMETR?
O>IDATION-REDUCTION REACTIONS
0. (i%( ! (# !++!/i" !xidai!" &a#& i& %!#%+; id#"ii#d9
+5 -2
>. "ia# i!" "i!#" i& 6 NO'-+6 -2
?. %(!)a# i!" %(!)i$) i& 6 CO42-
+6 -2 @. &$+a# i!" &$+$ i& 6 SO4
2-
A. >, ? a"d @ B. > a"d ? !"+;
C. > !"+;
D. > a"d @ !"+;
E. ? a"d @ !"+;
20. CHEM 161-200' E>AM II ANSERS
CHAPTER 4-T?PES O* CHEMICAL REACTIONS F SOLN STOICHIOMETR?
O>IDATION-REDUCTION REACTIONS
(i%( ! (# !++!/i" #=$ai!"& a# !xidai!"-#d$%i!" #a%i!"&9
>. N2O' H2O2HNO2
?. *#2O' CO CO2 2*#O
@. CaCO'CaO CO2
A. ? !"+;B. > !"+;
C. >, ?, a"d @D. ? a"d @ !"+;
E. > a"d ? !"+;
' -2 1 -2 1 ' -2
N2O' H2O 2H N O2N! %(a"# i" !xidai!" "$)# ! a"; a!) (##!# "! a" !xid-#d #a%i!".
' -2 2 -2 4 -2 2 -2
*#2O' C O CO2 2*# O
20
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T(# *# a"d (# C !xidai!" &a#& %(a"#d. T(##!#, (i& i& a" !xid-#d #a%i!".
2 4 -2 2 -2 4 -2
Ca C O'CaO C O2N! %(a"# i" !xidai!" "$)# ! a"; a!) (##!# "! a" !xid-#d #a%i!".
22. C(#) 161-200' *i"a+ #xa)
C(a