A 245.7g sample of metal at 75.2°C was placed in 115.43g water at 22.6°C. The final temperature of the water and metal was 34.6°C. What is the specific heat of the metal? The specific heat of water is 4.18 J/g∙°C.

chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. these processes are called chemical reactions and, in general, are not reversible except by further chemical reactions. some reactions produce heat and are called exothermic reactions and others may require heat to enable the reaction to occur, which are called endothermic reactions. understanding chemical changes is a major part of the science of chemistry.