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Endothermic And Exothermic Reactions
Test Description: Review over the basics of Endothermic and Exothermic Reactions.
Instructions: Answer all questions to get your test result.
1) Which of the following is NOT a sign of a chemical reaction?
A
Melting
B
Temperature Change
C
Bubbles
D
Precipitate
2) In an EXOTHERMIC reaction ____.
A
The temperature increases
B
The surroundings feel cold
C
The temperature does not change
D
The temperature drops
3) More energy from bonds FORMING results in a _____reaction
A
Exothermic
B
Endothermic
4) When heat flows out of the system the reaction is called
A
Endothermic
B
Exothermic
5) In an Endothermic reaction ____.
A
It feels hot
B
The temperature increases
C
Bond are being formed
D
The temperature drops
6) Energy is absorbed during a ____ reaction
A
Exothermic
B
Endothermic
7) More energy from bonds BREAKING results in a ___ reaction
A
Exothermic
B
Endothermic
8) Which is true?
A
Exothermic reactions cause a temperature drop
B
Endothermic reactions get hot
C
Exothermic reactions get cold
D
Endothermic reactions cause a decrease in temperature
9) When bonds break
A
Energy is released
B
Energy is required
10) When bonds form
A
Energy is released
B
Energy is required
11) An ice cube melting into a puddle of water is an example of a/an ____
A
Chemical Reaction
B
Exothermic process
C
Equilibrium
D
Endothermic process
12) Which of the following would increase the speed of a chemical reaction?
A
Dropping the temperature
B
Increasing the temperature
C
Reducing the concentration
D
Removing a catalyst
13) When liquid water freezes to form an ice cube this is an example of a/an ___
A
Exothermic process
B
Bonds breaking
C
Endothermic Process
D
Equilibrium
14) Which statement is true?
A
Breaking bonds releases energy
B
Forming bonds requires energy
C
Forming bonds absorbs energy
D
Breaking bonds requires energy
*select an answer for all questions
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