How many oxygen atoms are present in MgSO4 • 7H2O?

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Chemistry, The Central Science, 11th edition
Theodore L. Brown; H. Eugene LeMay, Jr.;
Bruce E. Bursten and Catherine J. Murphy
Chapter 4
Aqueous Reactions and
Solution Chemistry
Donna Narsavage Heald
Siena College
Loudonville, NY
 2009, Prentice Hall
If you have equal concentrations of the
following aqueous solutions, which will
have the highest conductivity?
1.
2.
3.
4.
5.
CaCl2
KBr
Na2SO4
Al(NO3)3
LiC2H3O2
If you have equal concentrations of the
following aqueous solutions, which will
have the highest conductivity?
1.
2.
3.
4.
5.
CaCl2
KBr
Na2SO4
Al(NO3)3
LiC2H3O2
Which mixture will produce a precipitate?
1.
2.
3.
4.
5.
NH3
+
HClO4
+
Na2SO4 +
Ca(NO3)2 +
(NH4)2CO3 +
HF
KOH
PbCl2
KC2H3O2
Na3PO4
Which mixture will produce a precipitate?
1.
2.
3.
4.
5.
NH3
+
HClO4
+
Na2SO4 +
Ca(NO3)2 +
(NH4)2CO3 +
HF
KOH
PbCl2
KC2H3O2
Na3PO4
What is(are) the spectator ion(s) in the
following reaction?
KOH (aq) +
1.
2.
3.
4.
5.
K+
F–
K+ and F–
OH– and H+
OH–
HF (aq)
KF (aq) + H2O (l)
What is(are) the spectator ion(s) in the
following reaction?
KOH (aq) +
1.
2.
3.
4.
5.
K+
F–
K+ and F–
OH– and H+
OH–
HF (aq)
KF (aq) + H2O (l)
Which of the following reactions has the
net ionic equation:
H+ (aq)
1.
2.
3.
4.
5.
+
Reaction 1
Reactions 1, 4
Reactions 2, 3
Reactions 2, 4
Reactions 3, 4
OH– (aq)
1)
2)
3)
4)
HClO 4
HF
H3PO4
H2SO4
H2O (l)
+
+
+
+
KOH
NaOH
KOH
Ca(OH) 2
Which of the following reactions has the
net ionic equation:
H+ (aq)
1.
2.
3.
4.
5.
+
Reaction 1
Reactions 1, 4
Reactions 2, 3
Reactions 2, 4
Reactions 3, 4
OH– (aq)
1)
2)
3)
4)
HClO 4
HF
H3PO4
H2SO4
H2O (l)
+
+
+
+
KOH
NaOH
KOH
Ca(OH) 2
Which will have the highest
concentration of Na+?
1.
2.
3.
4.
5.
0.35 M Na2SO4
0.40 M Na3PO4
0.50 M NaNO3
0.80 M NaOH
1.00 M NaCl
Which will have the highest
concentration of Na+?
1.
2.
3.
4.
5.
0.35 M Na2SO4
0.40 M Na3PO4
0.50 M NaNO3
0.80 M NaOH
1.00 M NaCl
Given the following reactions, rank the
activity of each metal.
1.
2.
3.
4.
5.
Mg>Al>Zn>Cu
Al>Mg>Zn>Cu
Cu>Zn>Al>Mg
Zn>Cu>Al>Mg
Al>Mg>Cu>Zn
2 Al + 3 ZnCl 2  2 AlCl 3 + 3 Zn
3 Mg + 2 AlCl 3 3 MgCl2 + 2 Al
Zn + CuCl 2
ZnCl 2 + Cu
Given the following reactions, rank the
activity of each metal.
1.
2.
3.
4.
5.
Mg>Al>Zn>Cu
Al>Mg>Zn>Cu
Cu>Zn>Al>Mg
Zn>Cu>Al>Mg
Al>Mg>Cu>Zn
2 Al + 3 ZnCl 2  2 AlCl 3 + 3 Zn
3 Mg + 2 AlCl 3 3 MgCl2 + 2 Al
Zn + CuCl 2
ZnCl 2 + Cu

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