Which of the following best describes the changes involved in a fission reaction? the nucleus of an atom splits into fragments, releasing a large amount of energy. the nucleus of an atom splits into fragments, absorbing a large amount of energy. the nuclei of two small atoms combine to form one larger nucleus, releasing a large amount of energy. the nuclei of two small atoms combine to form one larger nucleus, absorbing a large amount of energy.

i believe it is c.) 1575 j.

the enthalpy of formation of water is given as -285.8kj/mol, which states that the enthalpy of formation is negative.

negative enthalpy of formation indicates that the heat is released during the reaction process. the heat is released from reaction to the surroundings the enthalpy is expressed with a negative sign with the energy given out in the reaction process.

the formation of water takes place by giving out heat which is -285.8 kj/mol.