1. Question 1
What is the name and symbol of the unit of energy used in energy problems?
joule, J

2. Is energy taken in or given out when bonds break?
Question 2
Is energy taken in or given out when bonds break?
Supplied

3. Are all bond energies the same?
Question 3
Are all bond energies the same? No

4. Question 4
Does this energy level diagram show an exothermic or an endothermic reaction?
Exothermic reaction

5. Is energy taken in or given out when bonds are made?
Question 5
Is energy taken in or given out when bonds are made?
Released

6. Question 6
What do we call the minimum amount of energy needed for a reaction to start?
Activation energy

7. Question 7
Does this energy level diagram show an exothermic or an endothermic reaction?
Endothermic

8. Question 8
The reaction below is exothermic. Which involves the most energy, bond breaking or bond making?
Bond making