Double Displacement Complete
and Ionic Equations
KCl + Hg(NO3)2
Formulas correct, do not balance…
2
3
4
5
6
7
8
9
10
21
22
23
24
25
26
27
28
29
30
11
12
13
14
15
d
0%
N
O
No
t
lis
te
H)
2
3(
O
+
+
KN
1
0%
Hg
Hg
Cl
0%
O
KN
KN
O
O
3
+
3
0%
+
0%
Hg
Cl
2
5.
KH
g
4.
H2
O
3.
+
2.
KNO3 + HgCl2
KNO3 + HgCl
KNO3 + H2O + Hg
KHg + NO3(OH)2
Not listed
3
1.
16
17
18
19
20
Based on these products will the reaction
occur between KCl + Hg(NO3)2 ?
Yes
2. No
1.
0%
1
2
3
4
5
6
7
8
9
10
21
22
23
24
25
26
27
28
29
30
11
12
13
No
Ye
s
0%
14
15
16
17
18
19
20
KCl + Hg(NO3)2
What would be the precipitate if any?
O
0%
0%
No
t
KN
0%
d
0%
lis
te
0%
3
5.
KH
g
4.
2
3.
Hg
Cl
2.
KNO3
HgCl
HgCl2
KHg
Not listed
Hg
Cl
1.
1
2
3
4
5
6
7
8
9
10
21
22
23
24
25
26
27
28
29
30
11
12
13
14
15
16
17
18
19
20
KCl + Hg(NO3)2
What would be one of the ions in solution
after the reaction?
1.
2.
3.
4.
5.
Cl Hg2+
NO3+
K2+
Not listed
0%
Cl
1
2
3
4
5
6
7
8
9
10
21
22
23
24
25
26
27
28
29
30
11
12
0%
2+
Hg
13
14
0%
0%
+
K2
3+
NO
15
16
17
18
0%
t li
No
19
d
ste
20
To make Fe(OH)3, one of the reactants
could be
1.
LiOH
Mg(OH)2
3. Fe(OH)2
4. CaSO4
5. Not listed
2.
1
2
3
4
5
6
7
8
9
10
21
22
23
24
25
26
27
28
29
30
11
12
13
14
15
16
17
0%
lis
te
d
O4
0%
No
t
Ca
S
H)
2
0%
Fe
(O
H)
2
0%
M
g(
O
LiO
H
0%
18
19
20
How Do Crazy People Go
Through The Forest ?
They Take The Psychopath
Write the balanced chemical equation,
complete ionic and net ionic equation for the
following reaction?
Potassium chromate reacting with barium
nitrate 
Complete Ionic Equations
Molecular Equation:
K2CrO4 + Ba(NO3)2  BaCrO4 + 2 KNO3
Soluble
Soluble
Insoluble
Soluble
Complete Ionic Equation:
2 K+ + CrO4
-2
+ Ba+2 + 2 NO3- 
BaCrO4 (s) + 2 K+ + 2 NO3-
Net Ionic Equations
These are the same as complete ionic equations,
but you should cancel out ions that appear on
BOTH sides of the equation
Complete Ionic Equation:
2 K+ + CrO4 -2 + Ba+2 + 2 NO3- 
BaCrO4 (s) + 2 K+ + 2 NO3Net Ionic Equation:
CrO4 -2 + Ba+2  BaCrO4 (s)

Spectator Ion
Write the balanced chemical equation,
complete ionic and net ionic equation for
the following reaction?
Iron (III) chloride reacting with sodium
hydroxide 
Complete Ionic Equations
Molecular Equation:
FeCl3(aq) + 3 NaOH(aq)  Fe(OH)3(s) + 3 NaCl(aq)
Soluble
Soluble
Insoluble
Soluble
Complete Ionic Equation:
Fe3+ + 3 Cl- + 3 Na+ + 3 OH- 
Fe(OH)3(s) + 3 Cl- + 3 Na+
How Do You Get Holy Water?
You Boil The Hell Out Of It
What could I use to make MgO in a
precipitation reaction?
What ions would be in solution in the test
tube?
What could I use to make BaSO4 in a
precipitation reaction?
What ions would be in solution in the test
tube?
To make AgF(s), one of the reactants can not
be
2
3
4
5
6
7
8
9
10
21
22
23
24
25
26
27
28
29
30
11
12
13
14
15
16
0%
4
0%
d
0%
an
Ag
C2
H
1
0%
2
0%
3O
2
5.
Ag
Cl
4.
3
3.
Ag
NO
2.
AgC2H3O2
Ag2SO4
AgNO3
AgCl
2 and 4
Ag
2S
O4
1.
17
18
19
20
The test won’t be this bad!!!