Be sure to answer all parts. Select the correct definition for each of the following terms: (a) system the portion of the universe that is singled out for study everything that lies outside the system being studied the system that is being studied and what surrounds it (b) surroundings the portion of the universe that is singled out for study everything that lies outside the system being studied the system that is being studied and what surrounds it (c) thermal energy energy that results from the interaction of charged particles energy associated with the random motions of atoms and molecules energy associated with motion energy stored within the structural units of chemical substances (d) chemical energy energy possessed by virtue of position energy associated with the random motions of atoms and molecules energy associated with motion energy stored within the structural units of chemical substances