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Classifying Chemical Reactions
By Stacy Goldstein
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Last updated about 5 years ago
15 questions
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Classifying Chemical Reactions
Choose the correct type of reaction(s)
Question 1
1.
What type of reaction is this and how do you know?
CaCO
3
→ CaO + CO
2
Question 2
2.
2H
2
+ O
2
→ 2H
2
O
Synthesis
Decomposition
Single Replacement
Double Replacement
Combustion
Question 3
3.
2K + 2H
2
O → H
2
+ 2KOH
Synthesis
Decomposition
Single Replacement
Double Replacement
Combustion
Question 4
4.
CaCO
3
+ 2HCl → CaCl
2
+ H
2
CO
3
Synthesis
Decomposition
Single Replacement
Double Replacement
Combustion
Question 5
5.
2KClO
3
→ 2KCl + 3O
2
Synthesis
Decomposition
Single Replacement
Double Replacement
Combustion
Question 6
6.
Ca + 2HCl → CaCl
2
+ H
2
Synthesis
Decomposition
Single Replacement
Double Replacement
Combustion
Question 7
7.
2SO
2
+ O
2
→ 2SO
3
Synthesis
Decomposition
Single Replacement
Double Replacement
Combustion
Question 8
8.
Pb(NO
3
)
2
+ 2HCl → PbCl
2
+ 2NHO
3
Synthesis
Decomposition
Single Replacement
Double Replacement
Combustion
Question 9
9.
What type of reaction is this and how do you know?
Cu + 2AgNO
3
→ 2Ag + Cu(NO
3
)
2
Question 10
10.
2Na + Cl
2
→ 2NaCl
Synthesis
Decomposition
Single Replacement
Double Replacement
Combustion
Question 11
11.
CH4 + 2O
2
→ CO
2
+ 2H
2
O
Synthesis
Decomposition
Single Replacement
Double Replacement
Combustion
Question 12
12.
Pb(NO
3
)
2
+ 2KI → PbI
2
+ 2KNO
3
Synthesis
Decomposition
Single Replacement
Double Replacement
Combustion
Question 13
13.
2Fe + O
2
→ 2FeO
Synthesis
Decomposition
Single Replacement
Double Replacement
Combustion
Question 14
14.
Zn + 2HCl → H
2
+ ZnCl
2
Synthesis
Decomposition
Single Replacement
Double Replacement
Combustion
Question 15
15.
What type of reaction(s) are used above? How do you know?