An iron sphere with a mass of 75.00 g is heated to a temperature of 385.0â°c. it is then placed in a beaker containing 150.0 g h2o at 100.0â°c. how much heat energy must the water absorb to boil away completely? kj what is the maximum amount of heat the iron can release to the water? kj

The answer is water molecules are split.cellular respiration and photosynthesis are complement  reactions to each other. these are reverse reactions. in cellular respiration glucose and oxygen yield water and carbon dioxide. so, when respiration begins,  glucose molecules are split. in the opposite reaction - in photosynthesis, carbon dioxide and water yield glucose and oxygen. thus,  when respiration begins, water molecules are split.