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
)
In a Pt electrode, H2(1 atm) | H+(a=1), the interchange current density of an electrode is 0.79 mA cm-2. ¿Qué corriente flow across the electrode of área 5 cm2 when the difference in potential of the interface is +5 mV?.
If the current voltage is n = 0.14 V, indicate which of the 2 voltage
formulas of the ley of Tafel must be applied
i
a
a) == exp (1-B).
xp[(1 - ß³):
Fn
Fn
a
b) == exp B
RT
RT
If the current voltage is n = 0.14 V. Indicate which of the 2 formulas must be applied
a)
=
a
T = i exp[(1 - p) F
Fn
Fn
b) i==exp B
RT
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