1.03 Energy causes change Flashcards
1
Q
What does exo mean?
A
Out
2
Q
What does endo mean?
A
In
3
Q
What does therm mean?
A
Heat
4
Q
What does exothermic mean?
A
Heat being released from a reaction
5
Q
What does endothermic mean?
A
Heat being absorbed from a reaction
6
Q
What’s the “trick” to remember which phase change are exothermic or endothermic?
A
Energy being absorbed = Atoms moving faster
7
Q
Which phase changes are exothermic?
A
Condensing and freezing
8
Q
Which phase changes are endothermic?
A
Melting and boiling/vaporizing/evaporating
9
Q
A candle burning is an ___thermic reaction.
A
Exo - heat is going out
10
Q
Fireworks exploding are an ___thermic reaction.
A
Exo - heat is going out
11
Q
Baking a cake is an ___thermic reaction.
A
Endo - heat is going into the cake to bake it
