0.0721 moles of a compound have a mass of 31.008 grams. What is the molar mass? (please show work and provide an explanation!)

divide the moles by gram to get molar mass

use calculator and get yo ans

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.