Calculate the moles of oxygen gas which will react with 89.4 grams of iron.

No of moles of Fe = Mass / Relative molar mass of Fe. So no of moles = 89.4/ 55.845 = 1.60. The. Chemical reaction is represented as follows. 4 Fe + 3 O2 which gives 2Fe2 O3 . This means that 4 atoms of Iron reacts with 3 atoms of Oxygen to produce Iron oxide. Hence 1.60*4 moles of Fe will need to react 1.6 * 3 moles of Oxygen to produce 2 moles of Iron oxide. Hence 4.8 moles of Oxygen will be required.

Either way - whether it's fusion or fission - energy is released as a result of the nuclearreaction. Let's look at an example of each type of nuclear reaction. Nuclear fission is used to generate electricity in our nuclear power plants. Fission occurs when uranium nuclei are bombarded with neutrons.