 Types of Reactions
3 years ago
carreau
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Practice 20 QuestionsShow answers
• Question 1
60 seconds
Q. 4Si + S8 --> 2Si2S4
Synthesis
Decomposition
Single displacement
Double displacement
• Question 2
60 seconds
Q. 3Ca + 2AlCl3 --> 3CaCl2 + 2Al
Synthesis
Decomposition
Single diplacement
Double displacement
• Question 3
60 seconds
Q. 3KOH + H3PO4 --> K3PO4 + 3H2O
Synthesis
Decomposition
Single displacement
Double displacement
• Question 4
60 seconds
Q. 2Pb(NO3)2 --> 2PbO + 4NO2 + O2
Synthesis
Decomposition
Single displacement
Combustion
• Question 5
60 seconds
Q. 3Mg + N2 --> Mg3N2
Synthesis
Decomposition
Single displacement
Combustion
• Question 6
60 seconds
Q. 2NO2 --> N2 + 2O2
Synthesis
Decomposition
Single displacement
Combustion
• Question 7
60 seconds
Q. P4 + 3O--> 2P2O3
Synthesis
Decomposition
Single displacement
Combustion
• Question 8
60 seconds
Q. Fe + H2SO4 --> Fe2(SO4)3 + H2
Synthesis (combination)
Decomposition
Single replacement
Combustion
• Question 9
120 seconds
Q. Which reaction type is the following: C5H10O4 + O2 --> CO2 + H2O
Decomposition
Single Replacement
Combustion
Double Replacement
• Question 10
30 seconds
Q. Which of the following is the general formula for a decomposition reaction?
A + B  → AB
AB → A + B
AB + C → AC + B
AB + CD → AC + BD
• Question 11
60 seconds
Q. When balancing equations a ____ can be placed to the left of a formula of a substance to make the equations balanced
charge
subscript
random number
coefficient
• Question 12
60 seconds
Q. What coefficient should be used to make the following equation balanced?
N2+O2--> _NO
1
2
3
4
• Question 13
60 seconds
Q. Balance this equation:
__Li + __Cl2 -> __LiCl
2Li + Cl2 -> 4LiCl2
2Li + Cl2 -> LiCl2
2Li +  Cl2 -> 2LiCl
• Question 14
120 seconds
Q. C4H12 + O2 --> CO2 + H2O
Synthesis
Combustion
Single Replacement
Double Replacement
• Question 15
120 seconds
Q. H2SO4 + Fe -->H2 + FeSO4
Synthesis
Decomposition
Single Replacement
Double Replacement
• Question 16
120 seconds
Q. PbCl2 + AgNO3 ---> Pb(NO3)2 + AgCl
Synthesis
Decomposition
Single Replacement
Double Replacement
• Question 17
120 seconds
Q. NH3 + HCl ---> NH4Cl
Synthesis
Decomposition
Single Replacement
Double Replacement
• Question 18
30 seconds
Q. Which chemical reaction switches 2 elements?
Double Replacement
Single Replacement
Combustion
Decomposition
• Question 19
30 seconds
Q. Which chemical reaction takes place when 2 substances react to form a single product?
Decomposition
Double Replacement
Single Replacement
Synthesis
• Question 20
30 seconds
Q. At the end of chemical reactions, what is the total mass of the reactants compared to the total mass of the products?