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Chemistry
Chemistry
Problem
In the complete ionic equation below, which pair of ions are spectator ions?
Ba
2
+
(
a
q
)
+
2
Cl
−
(
a
q
)
+
2
K
+
(
a
q
)
+
SO
4
2
−
(
a
q
)
→
BaSO
4
(
s
)
+
2
K
+
(
a
q
)
+
2
Cl
−
(
a
q
)
\text{Ba}^{2+}(aq) + 2\,\text{Cl}^-(aq) + 2\,\text{K}^+(aq) + \text{SO}_4^{2-}(aq) \rightarrow \text{BaSO}_4(s) + 2\,\text{K}^+(aq) + 2\,\text{Cl}^-(aq)
Ba
2
+
(
a
q
)
+
2
Cl
−
(
a
q
)
+
2
K
+
(
a
q
)
+
SO
4
2
−
(
a
q
)
→
BaSO
4
(
s
)
+
2
K
+
(
a
q
)
+
2
Cl
−
(
a
q
)
a)
Ba
2
+
\text{Ba}^{2+}
Ba
2
+
and
SO
4
2
−
\text{SO}_4^{2-}
SO
4
2
−
b)
Ba
2
+
\text{Ba}^{2+}
Ba
2
+
and
Cl
−
\text{Cl}^-
Cl
−
c)
K
+
\text{K}^+
K
+
and
Cl
−
\text{Cl}^-
Cl
−
d)
K
+
\text{K}^+
K
+
and
SO
4
2
−
\text{SO}_4^{2-}
SO
4
2
−
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