WorksheetsEndothermic and exothermic
Total questions: 20
Worksheet time: 10mins
In an endothermic reaction, energy is _________.
absorbed
released
_____ reactions usually feel hot!
endothermic
exothermic
____ reactions usually feel cold.
endothermic
exothermic
Endo means in or _______.
absorbed
released
Exo means out or ________.
absorbed
released
What instrument would you use to detect an endothermic or exothermic reaction?
triple beam balance
ruler
thermometer
When a candle is lit hydrocarbons are combusting. An exothermic reaction is occuring. Energy is being _________________ .
absorbed
frozen
destroyed
released
Photosynthesis
endothermic
exothermic
Displacement reactions
endothermic
exothermic
Neutralisation reactions
endothermic
exothermic
Dissolving ammonium nitrate
endothermic
exothermic
Which of the following is a sign that a chemical reaction has occurred?
change in shape
melting
there was colour change
dissolving
The initial temperature was measured to be 20oC and the final temperature was 45oC. The reaction was
exothermic
endothermic
