Identify each of the following unbalanced reaction equations as belonging to one or more of the following categories: precipitation, acid−base, or oxidation−reduction. msp; Fe ( s ) + H 2 SO 4 ( a q ) → Fe 3 ( SO 4 ) 2 ( a q ) + H 2 ( g ) msp; HClO 4 ( a q ) + RbOH ( a q ) → RbCIO 4 ( a q ) + H 2 O ( l ) msp; Ca ( s ) + O 2 ( g ) → CaO ( s ) msp; H 2 SO 4 ( a q ) + NaOH ( a q ) → Na 2 SO 4 ( a q ) + H 2 O ( l ) msp; Pb ( NO 3 ) 2 ( a q ) + Na 2 CO 3 ( a q ) → PbCO 3 ( s ) + NaNO 3 ( a q ) msp; K 2 SO 4 ( a q ) + CaCl 2 ( a q ) → KCl ( a q ) + CaSO 4 ( s ) msp; HNO 3 ( a q ) + KOH ( a q ) → KNO 3 ( a q ) + H 2 O ( l ) msp; Ni ( C 2 H 3 O 2 ) 2 ( a q ) + Na 2 S ( a q ) → NiS ( s ) + NaC 2 H 3 O 2 ( a q ) msp; Ni ( s ) + Cl 2 ( g ) → NiCl 2 ( s )
Identify each of the following unbalanced reaction equations as belonging to one or more of the following categories: precipitation, acid−base, or oxidation−reduction. msp; Fe ( s ) + H 2 SO 4 ( a q ) → Fe 3 ( SO 4 ) 2 ( a q ) + H 2 ( g ) msp; HClO 4 ( a q ) + RbOH ( a q ) → RbCIO 4 ( a q ) + H 2 O ( l ) msp; Ca ( s ) + O 2 ( g ) → CaO ( s ) msp; H 2 SO 4 ( a q ) + NaOH ( a q ) → Na 2 SO 4 ( a q ) + H 2 O ( l ) msp; Pb ( NO 3 ) 2 ( a q ) + Na 2 CO 3 ( a q ) → PbCO 3 ( s ) + NaNO 3 ( a q ) msp; K 2 SO 4 ( a q ) + CaCl 2 ( a q ) → KCl ( a q ) + CaSO 4 ( s ) msp; HNO 3 ( a q ) + KOH ( a q ) → KNO 3 ( a q ) + H 2 O ( l ) msp; Ni ( C 2 H 3 O 2 ) 2 ( a q ) + Na 2 S ( a q ) → NiS ( s ) + NaC 2 H 3 O 2 ( a q ) msp; Ni ( s ) + Cl 2 ( g ) → NiCl 2 ( s )
Solution Summary: The author explains that a precipitation reaction is an acid base reaction and an electron transfer occurs.
Identify each of the following unbalanced reaction equations as belonging to one or more of the following categories: precipitation, acid−base, or oxidation−reduction.
msp;
Fe
(
s
)
+
H
2
SO
4
(
a
q
)
→
Fe
3
(
SO
4
)
2
(
a
q
)
+
H
2
(
g
)
msp;
HClO
4
(
a
q
)
+
RbOH
(
a
q
)
→
RbCIO
4
(
a
q
)
+
H
2
O
(
l
)
msp;
Ca
(
s
)
+
O
2
(
g
)
→
CaO
(
s
)
msp;
H
2
SO
4
(
a
q
)
+
NaOH
(
a
q
)
→
Na
2
SO
4
(
a
q
)
+
H
2
O
(
l
)
msp;
Pb
(
NO
3
)
2
(
a
q
)
+
Na
2
CO
3
(
a
q
)
→
PbCO
3
(
s
)
+
NaNO
3
(
a
q
)
msp;
K
2
SO
4
(
a
q
)
+
CaCl
2
(
a
q
)
→
KCl
(
a
q
)
+
CaSO
4
(
s
)
msp;
HNO
3
(
a
q
)
+
KOH
(
a
q
)
→
KNO
3
(
a
q
)
+
H
2
O
(
l
)
msp;
Ni
(
C
2
H
3
O
2
)
2
(
a
q
)
+
Na
2
S
(
a
q
)
→
NiS
(
s
)
+
NaC
2
H
3
O
2
(
a
q
)
At pil below about 35
woon (Fe) oxidizes in streams according to the following
Water in a reservoir at 20°C has a pH of 7.7 and contains the following constituents:
Constituent (g) + Conc. (mg/L)
Ca2+
38
HCO3 abiotic oxid 183
HO
Ferrous iron under these conditions and at 20°Cis
Estimate the activities of Ca2+ and HCO3-, using an appropriate equation to compute the
activity coefficients. (atomic weight: Ca 40)
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