energy level diagrams Flashcards
1
Q
what is an exothermic reaction?
A
releases more energy than they take in/ energy exits the system
2
Q
what are endothermic reaction?
A
take in more energy then they release/ energy enters the system
3
Q
what happens to the temperature if the reaction is endothermic?
A
the energy is absorbed so the temperature of the surroundings decrease.
4
Q
what happens to the temperature if the reaction is exothermic?
A
energy is released so the temperature of the surroundings increase
5
Q
what is thermal decomposition?
A
the chemical reaction when a compound breaks down when heated
6
Q
what is an ion?
A
an ion is an atom or group of atoms with a positive or negative charge. ions form when atoms lose or gain electrons to obtain a full outer shell.
