1. The problem statement, all variables and given/known data A Sun-like star may convert some carbon 12C (nuclear mass 1.998 ×10-26 kg) to oxygen 16O (nuclear mass 2.657 ×10-26 kg) towards the end of its life. Approximately how much energy is released per fusion reaction? 2. Relevant equations e=mc2 c+he = o + energy 3. The attempt at a solution I know you have to work out the mass of the energy lost then use e=mc2 to determine the energy in joules but I can't seem to get a correct answer?