Section 10.3
Reactions in Aqueous Solutions
Practice Test
1.
Which of these is a spectator ion in the reaction 2NaOH(aq) + CuC
l2
→ 2NaCl(aq) + Cu(OH)
2
(s)?
a.
Cu
b.
Cl and Na
c.
Na
d.
OH
Hint
2.
What is the complete ionic equation for the following chemical equation?
Cl
2
(aq) + Na
2
SO
4
(aq) → BaSO
4
(s) + 2NaCl(aq)
a.
Ba
2+
(aq) + Cl
-
(aq) + Na+(aq) + SO
4
2-
(aq) → Na+(aq) + Cl
-
(aq) + BaSO
4
(s)
b.
Ba
2+
(aq) + 2Cl
-
(aq) + 2Na
+
(aq) + SO
4
2-
(aq) → 2Na
+
(aq) + 2Cl
-
(aq) + BaSO
4
(s)
c.
BaCl
2
(aq) + 2Na
+
(aq) + SO4
2-
(aq) → 2Na
+
(aq) + 2Cl
-
(aq) + BaSO
4
(s)
d.
Ba
2+
(aq) + SO
4
2-
(aq) → BaSO
4
(s)
Hint
3.
In the chemical equation below, which of the components is a precipitate?
HCl(aq) + AgNO
3
(aq) → AgCl(s) + HNO
3
(aq)
a.
HCl(aq)
b.
AgNO
3
(aq)
c.
AgCl(s)
d.
HNO
3
(aq)
Hint
4.
The components of a chemical equation that are left after the spectator ions are removed are the ____________.
a.
spectator ions
b.
reactants
c.
products
d.
participating ions
Hint
5.
In the reaction below, which of the components will precipitate?
NaCl(aq) + KBr(aq) → KCl(aq) + NaBr(aq)
a.
KCl(aq)
b.
NaBr(aq)
c.
KBr(aq)
d.
none of the components precipitate
Hint
6.
Which of the following components will always be produced during a chemical reaction between an acid and a base?
a.
an acid
b.
a base
c.
a gas
d.
water
Hint
7.
Na+(aq) is a _________________ in the following complete ionic equation.
H
+
(aq) + Cl
-
(aq) + Na
+
(aq) + OH
-
(aq) → Na
+
(aq) + Cl
-
(aq) + H
2
O(l)
a.
participating ion
b.
reacting compound
c.
reacting molecule
d.
spectator ion
Hint
