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WorksheetsHalf Equation
Total questions: 12
Worksheet time: 13mins
Name
Class
Date
1.
Which is the correct net ionic equation for the reaction of AgNO3 and CaCl2?
a)
Ca2+(aq) + 2Cl- (aq) → CaCl(s)
b)
Ag+(aq) + Cl- (aq) → AgCl(s)
c)
Ag + Cl → AgCl
d)
Ag+ + Ca2+ →Ag2Ca (s)
2.
What are the spectator ions in the reaction of sodium chloride with silver nitrate?
a)
silver and nitrate
b)
sodium and chloride
c)
sodium and nitrate
d)
silver and chloride
3.
In the reaction
2Ca(s) + O2(g) → 2CaO(s), calcium is...
2Ca(s) + O2(g) → 2CaO(s), calcium is...
a)
Reduced
b)
Synthesized
c)
Oxidized
d)
None of the above
4.
In this equation,
CuCl2 + NaOH → Cu(OH)2 + NaCl
Which product is insoluble?
CuCl2 + NaOH → Cu(OH)2 + NaCl
Which product is insoluble?
a)
copper(II) hydroxide
b)
sodium chloride
c)
sodium hydroxide
d)
copper(II) chloride
5.
What are the spectator ions in this reaction?
CuCl2(aq) + NaOH(aq) → Cu(OH)2(s) + NaCl(aq)
CuCl2(aq) + NaOH(aq) → Cu(OH)2(s) + NaCl(aq)
a)
Cu2+ and OH1-
b)
Na2+ and Cl2-
c)
Na1+ and Cl1-
d)
Na1+ and OH1-
6.
What precipitate forms when you mix lead (II) nitrate with sodium chloride?
a)
sodium nitrate
b)
lead (II) chloride
c)
sodium lead
d)
chloride nitrate
7.
In the reaction Zn + H2O --> ZnO2 + H2
which element, if any, is oxidized?
which element, if any, is oxidized?
a)
Zinc
b)
Hydrogen
c)
Oxygen
d)
None
8.
What substance is oxidized in the following reaction?
4Fe + 3O2 --> 2Fe2O3
4Fe + 3O2 --> 2Fe2O3
a)
Iron
b)
Fluorine
c)
Oxygen
9.
Is calcium oxidized or reduced in the following reaction?
2CaO--> 2Ca + O2
2CaO--> 2Ca + O2
a)
Oxidized
b)
Reduced
10.
Which substance is reduced in the following reaction?
NaOH + Li --> LiOH + Na
NaOH + Li --> LiOH + Na
a)
Li
b)
Na
c)
O
d)
H
11.
What type of chemical reaction is this?
Al(OH)3 → Al2O3 + H2O
Al(OH)3 → Al2O3 + H2O
a)
Decomposition
b)
Combustion
c)
Synthesis
d)
Single Replacement
12.
What coefficients are needed to correctly balance the equation?
_Bi + _O2 → _Bi2O3
_Bi + _O2 → _Bi2O3
a)
3,2,3
b)
2,3,2
c)
4,3,2
d)
none of these
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