How many moles of Al2O3 are needed to produce 10 moles of Fe3O4?

What are the chemical names of these compounds? ke: mg3n2: reset next

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

Give more examples of this type of heat transfer: