What mass of iron(III) oxide can be formed from the reaction of 6.0 g of iron with excess oxygen?

What shape would a molecule with two bound groups and two lone pairs have?

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 of the following words describe the reality that the universe looks the same from various perspective