AnswersAA-F26 Physical ScienceIntroduction to Chemical Reactions

Types of Chemical Reactions Answers

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1
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What else is produced during the combustion of propane, C3H8?

Question illustration
A
H2O
B
C3H8
C
O2
D
C3H8O2
2
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synthesispolymerizationdecompositionoxidationreplacement

A
synthesis
B
polymerization
C
decomposition
D
oxidation
E
replacement
3

Rosa was looking for patterns to help predict the products of chemical reactions. She recorded three similar decomposition reactions in the table.What products should she record in the last row of the table?

Question illustration
A
2LiCl + 3O2
B
3LiCl + 2O2
C
2LiO + 3Cl2
D
3LiO+ 2Cl2
4

Which type of reaction is NaCl + AgNO3 → NaNO3 + AgCl?

A
synthesis
B
decomposition
C
oxidation
D
replacement
5

Andre is predicting the products of chemical reactions. In one reaction, a hydrocarbon is the only reactant. What is the best prediction and explanation of this reaction?

A
Two new compounds form as the hydrocarbon undergoes a synthesis reaction.
B
Carbon dioxide and water form because the hydrocarbon undergoes a combustion reaction.
C
A polymer forms because the hydrocarbon joins with itself in a polymerization reaction.
D
Oxides form because the hydrocarbon combines with oxygen in an oxidation reaction.
6

What is produced during the replacement reaction of Ba(NO3)2 and Na2SO4?

A
2BaNa + 2NO3SO4
B
2NaNO3 + BaSO4
C
NaNO3 + BaSO4
D
BaNa2 + (NO3)2SO4
7

Which is produced in a synthesis reaction?

A
a single element
B
a single compound
C
a single ion
D
a single atom
8

Which clue can be used to identify a chemical reaction as a combustion reaction?

A
Oxygen is a product.
B
A hydrocarbon reacts with oxygen.
C
Water and carbon dioxide react.
D
The reaction involves ions.
9

What else is produced when sodium carbonate decomposes? Na2CO3 → Na2O +

Answer not available
10

When explaining chemical reactions to a friend, Brianna models a reaction by combining ingredients to make a cake. Which type of chemical reaction is Brianna most likely explaining?

A
synthesis
B
decomposition
C
polymerization
D
replacement
11

Which type of reaction is NaCl + AgNO3 → NaNO3 + AgCl?

A
synthesis
B
decomposition
C
oxidation
D
replacement
12

What is produced during the replacement reaction of Ba(NO3)2 and Na2SO4?

A
2BaNa + 2NO3SO4
B
2NaNO3 + BaSO4
C
NaNO3 + BaSO4
D
BaNa2 + (NO3)2SO4
13

Which clue can be used to identify a chemical reaction as a combustion reaction?

A
Oxygen is a product.
B
A hydrocarbon reacts with oxygen.
C
Water and carbon dioxide react.
D
The reaction involves ions.
14

When Coach Kwan notices that a player is getting tired, she takes out the tired player and substitutes a fresh player. Which type of chemical reaction does this best model?

A
replacement
B
decomposition
C
synthesis
D
oxidation
15

Which clue can be used to identify a chemical reaction as a replacement reaction?

A
The reaction has two reactants with ions that seem to switch places.
B
The reaction has a single reactant that changes into two or more products.
C
The reaction involves oxygen reacting with a hydrocarbon and giving off heat.
D
The reaction involves a single product forming from two or more reactants.
16

[BLANK]

A
synthesis
B
polymerization
C
decomposition
D
oxidation
E
replacement
17

Rosa was looking for patterns to help predict the products of chemical reactions. She recorded three similar decomposition reactions in the table.What products should she record in the last row of the table?

Question illustration
A
2LiCl + 3O2
B
3LiCl + 2O2
C
2LiO + 3Cl2
D
3LiO+ 2Cl2
18

What else is produced during the combustion of propane, C3H8?

Question illustration
A
H2O
B
C3H8
C
O2
D
C3H8O2
19

Andre is predicting the products of chemical reactions. In one reaction, a hydrocarbon is the only reactant. What is the best prediction and explanation of this reaction?

A
Two new compounds form as the hydrocarbon undergoes a synthesis reaction.
B
Carbon dioxide and water form because the hydrocarbon undergoes a combustion reaction.
C
A polymer forms because the hydrocarbon joins with itself in a polymerization reaction.
D
Oxides form because the hydrocarbon combines with oxygen in an oxidation reaction.
20

Which is produced in a synthesis reaction?

A
a single element
B
a single compound
C
a single ion
D
a single atom

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