Which row shows a reaction in which the overall energy change is exothermic?
- Aenergy needed for breaking bonds: 600 kJ; energy released by forming bonds: 300 kJ; temperature of the surroundings: decreases
- Benergy needed for breaking bonds: 600 kJ; energy released by forming bonds: 1200 kJ; temperature of the surroundings: decreases
- Cenergy needed for breaking bonds: 900 kJ; energy released by forming bonds: 300 kJ; temperature of the surroundings: increases
- Denergy needed for breaking bonds: 900 kJ; energy released by forming bonds: 1200 kJ; temperature of the surroundings: increases