Uranium hexafluoride, UF6, is processed to produce fuel for nuclear reactors and nuclear weapons. UF6 can be produced in a two-step reaction. Solid uranium (IV) oxide, UO2, is first made to react with hydrofluoric acid (HF) solution to form solid UF4 with water as a by-product. UF4 further reacts with fluorine gas to form UF6. (b) Which step is an acid-base reaction?

Video transcript

Hey everyone, we're asked to determine which of the following is a double displacement reaction. And as we know, a double displacement reaction is going to be a compound of A. B. Plus another compound of C. D. And we end up with the products of A. D. Plus C. B. So essentially our ions were exchanged. So let's go ahead and look at our answer choices. Starting off with A. We have the following looking at our products, we have salt plus water and as we know salt and water as products mean an acid base reaction. So this can't be our answer. Looking at B, we have to react ints that become one product. So since we only formed one product, this is going to be a combination reaction. So this can't be your answer as well. Looking at sea, we see that our products became silver chloride and sodium nitrate. So looking at this, it looks like our ions were in fact exchange. So it looks like C. Is going to be our answer choice. But let's go ahead and look at D. To eliminate it as well. We see that our compound reacts with oxygen and we produce carbon dioxide and water. So that means we have a combustion reaction. So answer choice. D. Can't be our answer as well. So we're left with answer choice C. Which is our final answer. Now I hope this made sense. And let us know if you have any questions