3. How many moles of oxygen are required to react completely with 5.00 grams of hydrogen? 4. Iron (III) oxide, Fe 2 O 3 formed when iron, Fe, combines with oxygen in the air. How many grams of Fe 2 O 3 formed when 12.5 g of Fe reacts completely with oxygen?

The atomic nucleus made up from protons (yellow) and neutrons (blue) and held together by nuclear forces. nuclear forces (also known as nuclear interactions or strong forces) are the forces that act between two or more nucleons. they bind protons and neutrons (“nucleons”) into atomic

Just took the quiz on edgenuity and the correct answer is "c.  4.54 x  10–12  j"