What is the name of N4O10?

Which statement describes the phase change that occurs when dry ice is placed in an open container at room temperature?

How many moles of potassium hydroxide are needed to completely react with 2.94 moles of aluminum sulfate

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