Glencoe Physical Science

Chapter 21: Chemical Reactions

Section 3 Self-Check Quiz-Eng.

1
In a __________ reaction, two or more substances combine to form another substance.
A)synthesis
B)decomposition
C)single displacement
D)double displacement
2
The formula AB → A + B represents what type of chemical reaction?
A)synthesis
B)decomposition
C)single displacement
D)double displacement
3
Which of the following general formulas represents a single-displacement reaction?
A)AB → A + B
B)A + B → AB
C)A + BC → AC + B
D)AB + CD → AD + CB
4
An insoluble compound that comes out of solution during a double displacement reaction is called a __________ .
A)solvent
B)reactant
C)precipitate
D)catalyst
5
What type of reaction is represented by the following equation: 2H2 + O2 → 2H2O?
A)synthesis
B)single displacement
C)double displacement
D)decomposition
6
What type of reaction produces a precipitate?
A)single displacement
B)synthesis
C)double displacement
D)decomposition
7
The following equation represents what type of chemical reaction: 2H2(g) + O2(g) → 2H2O(g)?
A)synthesis
B)single displacement
C)double displacement
D)decomposition
8
If electric current passes through water and initiates a decomposition reaction, what are the expected products?
A)hydrogen and oxygen
B)hydrogen oxide
C)hydrogen peroxide
D)oxygen and water
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