AnswersTN-Physical Science SC 26-27 For CreditIntroduction to Chemical Reactions

Types of Chemical Reactions Answers

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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?

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

Which is produced in a synthesis reaction?

A
a single element
B
a single compound
C
a single ion
D
a single atom
5

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
6

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

Question illustration
A
H2O
B
C3H8
C
O2
D
C3H8O2
7

Luis is helping his parents paint a border around the walls of a room. He uses a stencil to repeat the same design on each wall to form one long grapevine with a bunch of grapes every foot along its length. What type of chemical reaction does this best model?

A
replacement
B
decomposition
C
polymerization
D
synthesis
8

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A
synthesis
B
polymerization
C
decomposition
D
oxidation
E
replacement
9

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

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