What+is+the+empirical+formula+of+a+ compound+that+is+64.3%c,+7.2%h,+and +28.5%o+by+mass?

Why doesn't heat added to water make the tempature rise above 100c

Compare and contrast physical changes with chemical changes.

For the reaction shown, calculate how many moles of no2 form when each of the following completely reacts. 2n2o5(g)→4no2(g)+o2(g) part a 1.0 mol n2o5 express your answer using two significant figures. nothing mol m o l request answer part b 5.4 mol n2o5 express your answer using two significant figures.