What can you conclude about these two reactions based on the chemical equations? Reaction A: 6CO2(g) + 6H2O(l) + sunlight ? C6H1
2O6(aq) + 6O2(g) Reaction B: 2H2(g) + O2(g) ? 2H2O(g) + energy A. Reactions A and B are both exothermic. B. Reaction A is endothermic, and reaction B is exothermic. C. Reactions A and B are both endothermic. D. Reaction A is exothermic, and reaction B is endothermic.
Exothermic reactions are those which proceed with the release of heat/energy. In contrast, endothermic reactions proceed with the absorption of energy in the form of heat or light.
Since reaction A required sunlight, it is endothermic. Reaction B releases energy, hence exothermic
