++++chem 161-2008 chapter 4b-types of chem reactions &soln stoic practice problems

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"&

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'. C(#) 161-2007 *i"a+ #xa)Hi++, P#$%%i # a+.

CHAPTER 4B - CHEMICAL REACTIONS IN AQUEOUS SOLUTIONS


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.

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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

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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

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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!"

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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

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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?


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

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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



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

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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

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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'

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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



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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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?


(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

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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

++++chem 161-2008 chapter 4b-types of chem reactions &soln stoic practice problems

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