Draw the line-angle structure for the given condensed structure, and map the carbon atoms in the condensed structure to the skeletal structure. Condensed structure for 2-bromo-3-ethylpentane numbering the carbon atoms from 1 to 5 starting with carbon 1.
CH2 CH3 CH3 CH2 CH CH CH3 Br

In a heat engine of 1000 j of heat enters the system and the piston does 500 j of work what is the final internal energy of the system if the inital energy was 2000 j we have to do all of these down here 1)write the equation 2)list out your know variables 3)plug the numbers into the equations 4)solve 5)write your solution statemtn that includes inital energuy and final energuy added