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Untitled
Grade: «grade»
Subject:
Date: «date»
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1 When the combustion reaction for C6H6 is properly balanced. What is the smallest whole­number coefficient for O2?
A
2
B
5
C
7
D
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___C6H6 + ___O2 g ___CO2 + ___H2O
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2
Which of the following is a single replacement reaction?
A
sodium chloride with potassium nitrate
B
chlorine gas with sodium metal
C
aluminum metal with hydrobromic acid
D
C2H5OH with oxygen gas
4
3 Balance the following equation: __ Fe(NO3)3 + __ K2SO3 g __Fe2(SO3)3 + __ KNO3
A
2 Fe(NO3)3 + 3 K2SO3 g Fe2(SO3)3 + 3 KNO3
B
2 Fe(NO3)3 + 3 K2SO3 g Fe2(SO3)3 + 6 KNO3
C
2 Fe(NO3)3 + K2SO3 g Fe2(SO3)3 + 2 KNO3
D
Fe(NO3)3 + 3 K2SO3 g Fe2(SO3)3 + 3 KNO3
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4 What type of reaction is described by the following equation? Zn + 2 AgNO3g
A
Combination
B
Decomposition
C
Single Replacement
D
Double Replacement
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5
Which of the following is insoluble in water?
A
K3PO4
B
Na2CO3
C
Fe2S3
D
AuCl3
7
Identify the type of chemical reaction given the following: MgCO3 g
6
A
Combustion
B
Decomposition
C
Single Replacement
D
Double Replacement
8
Which of the following compounds is soluble?
7
A
MgCO3
B
Al(OH)3
C
NiSO3
D
K2CrO4
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8
Choose the correct equation when bromine reacts with potassium iodide.
A
Br2 + 2 KI g 2 K + 2 BrI
B
Br2 + 2 KI g 2 KBr + 2 I­
C
Br2 + 2 KI g 2 KBr + I2
D
No reaction occurs
10
What is/are the spectator ion(s) when a solution of KCl is added to Pb(NO3)2?
9
A
K+ and Pb2+
B
K+ and Cl­
C
NO3­
D
NO3­ and K+
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What is the net ionic equation for the reaction between CaCl2 and MgSO4?
10
A
Ca2+ + SO42­ g CaSO4
B
2Cl­ + Mg2+ g MgCl2 C
CaCl2 g 2 Cl­ + Ca2+
D
CaCl2 + MgSO4 g MgCl2 + CaSO4 12
ANSWERS:
1.D
2.C
3.B
4.C
5.C
6.B
7.D
8.C
9.D
10.A
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