Complete and balance the following half-reactions. In each case, indicate whether the half-reaction is an oxidation or a reduction. (b) TiO21s2 ¡ Ti2+1aq2 (acidic solution)

Video transcript

everyone. So here I asked about the balance half reactions under acidic conditions and identify whether it is an oxidation or reduction reaction. We need to first write this out. We have P. T. The F. Four she minus and it's gonna get a P. T. Solid plus C. L minus chris. I need to balance the chlorine atoms have four chlorine on the reactant side but only one on the product side. They can put a four gonna cl minus a quiz. Now we need to balance the charges by adding electrons to the more positive side. If you look at our charges we have negative two here. 0 -4 here. They're gonna get negative two over here -4 over here overall. So this means we need to add electrons to the reactant side. We're gonna add two electrons over here. So for the balanced reaction we're gonna have P. T. The L. four Humanness Chris. Those two electrons. And this your pt solid Plus four -A Quiz. And for oxidation reactions this means we're losing electrons. That electron is going to be on the product side, reduction reactions were gonna gain electrons so the electrons gonna be on the reacting side. So in this case it's gonna be reduction. We're gaining electrons. Thanks for watching my video and I hope it was helpful