AnswersChemistry - SC3210 A-CRLab: Ionic and Covalent Bonds

Types of Chemical Reactions Answers

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

A
synthesis
B
decomposition
C
oxidation
D
replacement
4

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
5

[BLANK]

A
synthesis
B
polymerization
C
decomposition
D
oxidation
E
replacement
6

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.
7

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

Question illustration
A
H2O
B
C3H8
C
O2
D
C3H8O2
8

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
9

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
10

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

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