What is the definition of an endothermic reaction?

Endothermic and Exothermic Reactions

Quiz
•
Physics
•
7th Grade
•
Hard
Gil legaspi
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A reaction that releases heat to its surroundings.
A reaction that absorbs heat from its surroundings.
A reaction that occurs at a constant temperature.
A reaction that does not involve any heat exchange.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Provide an example of an endothermic reaction.
Burning of wood
Neutralization of an acid with a base
Ammonium nitrate + water -> Ammonium nitrate solution
Photosynthesis
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How would you define an exothermic reaction?
An exothermic reaction releases energy in the form of heat or light.
An exothermic reaction only occurs in living organisms.
An exothermic reaction has no impact on energy levels.
An exothermic reaction absorbs energy in the form of heat or light.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Can you give an example of an exothermic reaction?
Melting ice
Combustion of gasoline
Boiling water
Photosynthesis in plants
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Explain the concept of energy changes in chemical reactions.
Energy changes in chemical reactions are a result of changes in the state of matter.
Energy changes in chemical reactions are caused by changes in the color of substances.
Energy changes in chemical reactions are solely due to temperature fluctuations.
Energy changes in chemical reactions result from the breaking and forming of chemical bonds.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why do endothermic reactions require energy input?
Endothermic reactions require energy input to increase the reaction rate.
Endothermic reactions require energy input to break bonds in the reactants.
Endothermic reactions require energy input to decrease the temperature.
Endothermic reactions require energy input to form bonds in the products.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In which type of reaction, endothermic or exothermic, does the temperature of the surroundings increase?
exothermic
cold
thermal
endothermic
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