WorksheetsClassifying Chemical Equations Quiz
Total questions: 10
Worksheet time: 23mins
Name
Class
Date
1.
AB + CD →AD + CB
a)
Double Replacement
b)
Single Replacement
c)
Synthesis
d)
Decomposition
2.
Identify this type of reaction, Cl2 + 2KI --> I2 + 2KCl
a)
Synthesis
b)
Single replacement
c)
Double replacement
d)
Decomposition
3.
2 C5H5 + Fe --> Fe(C5H5)2
a)
single replacement
b)
double replacement
c)
decomposition
d)
synthesis
4.
Which of the following is the general formula for a decomposition reaction?
a)
A + B → AB
b)
AB → A + B
c)
AB + C → AC + B
d)
AB + CD → AC + BD
5.
NO2 →N2 + O2
a)
Synthesis
b)
Decomposition
c)
Single replacement
d)
Combustion
6.
Which of the following is a sign that a chemical reaction has occurred?
a)
change in shape
b)
smell
c)
formation of a gas
d)
dissolving
7.
Which of the following describes a precipitate?
a)
a liquid forms when a block of metal is heated
b)
a solid forms when one liquid is poured into another
c)
a gas forms when a solid is placed in a liquid
d)
bubbles form when an acid is poured on a rock
8.
__Al + __Fe3N2 -->__AlN + __Fe
a)
already balanced
b)
4,2,4,6
c)
2,1,2,3
d)
1,2,1,3
9.
What are the seven diatomic elements?
a)
H2, Cl2, Br2, O2, N2, I2, F2
b)
H2, Cl2, I2, F2, Hg2, Br2, Fe2
c)
H2, Cu2, Ni2, B2, O2, I2, Fe2
d)
H2, Cl2, Be2, O2, N2, I2, F2
10.
Balance this equation.
_C4H10 + _O2 --> _CO2 + _H2O
a)
2,7,4,5
b)
1,7,4,5
c)
2,13,8,10
d)
1,2,1,2
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