Write the chemical formula for each of the following compounds. Start the formula with the first element listed in each statement below and follow with the next element. The ratios in which the elements combine are given in each statement. (a) Rubbing alcohol is formed when three atoms of carbon combine with eight atoms of hydrogen and one atom of oxygen.

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