energy changes Flashcards
1
Q
An reaction is one that transfers energy to the
surroundings so the temperature of the surroundings increases =
A
exothermic
2
Q
An reaction is one that takes energy from the
surroundings so the temperature of the surroundings decreases =
A
endothermic
3
Q
What is meant by the term activation energy?
A
The min amount of energy that particles must have to react.
4
Q
What two things are needed for a chemical reaction to occur?
A
Reacting particles collide with each other and with sufficient energy.
