5.1 Exothermic and endothermic reaction Flashcards
1
Q
Bond energy
A
The amount of energy needed to break a bond
2
Q
Activation energy
A
The minimum energy required for a reaction to happen
3
Q
Enthalpy change
A
The difference in energy between reactants and products
4
Q
Endothermic reaction
A
A reaction that takes in thermal energy from the surroundings and breaks bonds
5
Q
Exothermic reaction
A
A reaction that gives out thermal energy to the surroundings and it makes bonds
