41. In metabolism, nicotinamide adenine dinucleotide is involved in redox reactions , carrying electrons from one reaction to another. 42. PMC is an electrochemical metallization memory that relies on redox reactions to form and dissolve a conductive filament. 43. Contaminant transformations are typically redox reactions . 44. Redox reactions involving Fe also appear to be essential factors in the fate of arsenic in aquatic systems.45. The complexes can undergo redox reactions . 46. Redox reactions are chemical reactions in which electrons are transferred from a donor molecule to an acceptor molecule.47. The energy released from redox reactions of these metal sulfides is available for the synthesis of organic molecules. 48. How can I tell if a reaction is a redox reaction just by looking at the chemical equation? 49. Reactions in which such electron exchange occurs ( which are the basis for batteries ) are called redox reactions . 50. An electrochemical cell is a device that produces an electric current from energy released by a spontaneous redox reaction .
