sc18 Flashcards
1
Q
What is an exothermic reaction?
A
A reaction in which heat energy is given out
2
Q
What is an endothermic reaction?
A
A reaction where heat energy is taken in
3
Q
Is the breaking of bonds exothermic or endothermic?
A
endothermic
4
Q
Is the making of bonds endothermic or exothermic?
A
exothermic
5
Q
When is the overall heat energy change for a reaction exothermic?
A
if more heat energy is released in forming bonds in the products than is required in breaking bonds in the reactants
6
Q
When is the overall heat energy change for a reaction endothermic?
A
If less heat energy is released in forming bonds in the products than is required in breaking bonds in the reactants
7
Q
What is activation energy?
A
minimum amount of energy particles need to have in order to react
