small piece of metal with a mass of 345.9 g wehen submereged in a beaker containing water, the water level rises to 175.5 ml. if the density of the metal block is 6.25 g/cm3 at 22 C then what ws the original water level in the beaker

c

explanation:

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.