Can someone , ? ? chemistry 3. in a nuclear reaction, energy is released by the combination of two elements into a new element. this process is an example of a. artificial disintegration. b. nuclear fission. c. natural radioactivity. d. nuclear fusion. 4. which of the following is one way to prevent the corrosion of iron? a. protect the iron from polluted air. b. let the iron develop a natural coat of carbonate. c. paint exposed iron parts with protective paint. d. add carbon to the iron