WCLN The Reduction Table and Spontaneity Chemsitry

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The Reduction Table and Spontaneity - predict whether a spontaneous reaction will occur when given reactants are combined. • http://www.BCLearningNetwork.com. • 0:10this video we'll show you how you can use the standard • 0:12reduction cavo to determine whether her reaction between two given species • 0:17is my teen years are not you should have a copy at the standard reduction • 0:21potentials have half cells table with you • 0:23as you watch this video here we will zemin • 0:27on the portion of the table were talking about at a particular time • 0:31it would be good for you to pause the video free could me • 0:34and find what we're pointing no on the full version of the table • 0:38remember oxidizing agents are on the left side of the table • 0:43and reducing agents are on the right all the half reactions on this table are • 0:48written as reduction half reactions • 0:50notice the oxidizing agents are all gaining electrons • 0:54and here's how it works • 0:57an oxidizing agent on the left will react spontaneously • 1:03with every reducing agent on the right below it • 1:06looking at your entire table you can see that fluorine • 1:10are after gas will react spontaneously • 1:13with everything on the right side at the table other than F minus • 1:17so flooring is the strongest oxidizing agent on the table • 1:22reducing agent on the right • 1:25for example RB will react spontaneously with every oxidizing agent above it • 1:31on the left a game looking at the entire table • 1:35rubidium at all RB react spontaneously • 1:39with everything on the left side of the table I did in our B-plus • 1:42so are be solid is the strongest reducing agent • 1:46on this table it's really important for you to distinguish between it and I and • 1:52I'm an element • 1:52and its new teacher or atomic form for example are be solid • 1:57is the strongest reducing agent and is very reactive • 2:00where is our B-plus is very weak oxidizing agent and doesn't react with • 2:05anything on this table • 2:06let's look at an example • 2:10mg two-plus will react spontaneously with everything below it on the right • 2:15and calcium metal is blowing on the right so the reaction between • 2:20ng2 pious and calcium is spontaneous • 2:23notice that the backslash can be drawn between the two species • 2:27so when a backslash can be drawn between two species • 2:33we can say that the will react spontaneously • 2:36with each other now let's say we next • 2:39ng2 plus with Mangini's metal am an • 2:43mt2 pious will react spontaneously • 2:47only with species on the right below it and manganese metal and man • 2:53is about it on the right not lower so we marked the diagonal line • 2:58between mg2+ pious and am an with the rat axe • 3:03and we state that ng2 pious does not react spontaneously • 3:08with him and metal you should be able to see now • 3:12that if a backslash can be drawn between two species • 3:15the reaction between them is spontaneous but if the forward slash can be drawn • 3:21between the two species • 3:23the reaction between them is non spontaneous • 3:26here's an example question well as certified • 3:29am enough or minus react spontaneously with sulfate • 3:33acidified permainan a RM enough or minus • 3:37means and enough or minus is combined with each plus • 3:41this half reaction is the fourth one from the top of the table • 3:44and the M A for minus NH pious • 3:48are found on the left side the sulfate I N • 3:51as a 4-2 minus is found on the right side about • 3:55acidified remaining the diagonal between them • 3:59is a forward slash so they do not react spontaneously • 4:03so the answer to this question is no • 4:07acidified permanganate will not react spontaneously with sulfate • 4:11here's another question well chlorine gas • 4:14oxidized silver medal Klein gas RC out to • 4:18is found here on the left side of the table • 4:21and silver medal AG solid is found here • 4:25on the right side cr2 oxidized anything below it on the right • 4:30and AG solid is below it on the right • 4:33the diagonal drawn between see out to nage • 4:36is a backslash so we can say yes this reaction is spontaneous • 4:41chlorine gas will spontaneously oxidized silver medal • 4:46here's another question will see all metal reduce • 4:50I to solid seal Matteo • 4:53is here on the right and it will spontaneously • 4:57reduce anything on the left side above it • 5:03and iodine RI to solid is about that on the left

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