How many significant figures are in 0.00326

An electrons position cannot be known precisely only it's probability of being in a certain location can be known

How many moles of carbon dioxide will form if 2.5 moles of c3h8 is burned

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