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WorksheetsUnit 5 Review: Endothermic and Exothermic Reactions
Total questions: 19
Worksheet time: 10mins
_____ reactions usually feel hot!
endothermic
exothermic
____ reactions usually feel cold.
endothermic
exothermic
Endo means in or _______.
absorbed
released
Exo means out or ________.
absorbed
released
The initial temperature was measured to be 20oC and the final temperature was 45oC. The reaction was
exothermic
endothermic
The initial temperature was measured to be 20oC and the final temperature was 10oC. The reaction was
exothermic
endothermic
What type of reaction is shown in this energy profile diagram
Exothermic
Endothermic
What type of reaction is shown in the energy profile diagram attached?
Exothermic
Endothermic
Activation Energy
Products
What does 'A' represent on the energy profile diagram attached?
Products
Energy lost
Activation Energy
Overall change in energy
What does 'X' represent in the energy profile shown here?
Energy
Products
Reactants
Reaction progess (time)
What does 'Z' represent in the energy profile shown here?
Reactants
Energy
Activation energy
Products
What does 'W' represent in the energy profile diagram shown?
Energy
Reactants
Products
Activation energy
What does 'Q' represent in the energy profile shown here?
Energy
Reaction rate (time)
Reactants
Activation energy
An instant icepack is an example of what type of reaction?
Endothermic
Exothermic
Acid base
Neutralisation
