The energy change of reactions Flashcards
1
Q
Exothermic
A
A process or reaction that the releases energy from the system into its surroundings
2
Q
Endothermic
A
A process or reaction the absorbs energy from the surroundings into its system
3
Q
Bond Breaking
A
It takes energy to break bonds, so bond breaking is and endothermic reaction
4
Q
Bond Making
A
Energy is released when new bonds are made so bond making is an exothermic process
5
Q
The overall energy changes
A
We can use the difference between bond breaking and bond making to see if the overall energy change is endothermic (+) or exothermic(-)
6
Q
Products
A
Bonds made (exothermic)
7
Q
Reactants
A
Bonds broken (endothermic)
8
Q
Activation energy
A
The minimum amount of energy needed for a chemical reaction to take place
