One day, 734 kJ of electrical energy was supplied to the pump, and the pump added 557 kJ of potential energy to water by raising it to ground level. The water flowing out of the pump had a total kinetic energy of 2 kJ. How much heat did the pump produce?

2b2t

explanation:

2b2t

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.