If the chemical properties of a substance remain unchanged and the appearance or shape of an substance changes it is called a

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

Which substance can be broken down by chemical means

What is the oxidation state of each individual carbon atom in c2o42−?