Answer the following question:
Give the difference between exothermic and endothermic reaction.
Answer variants:
Melting of ice
A chemical reaction in which heat energy is absorbed from the surroundings
Usually requires continuous supply of energy
Energy is given out by the reaction and surroundings becomes warmer
Respiration
A chemical reaction in which heat energy is released to the surroundings
i. Endothermic reaction
Definition:
Properties:
Example:
ii. Exothermic reaction
Definition:
Properties:
Example: