ЧТО БУДЕТ НА ОГЭ ПО ХИМИИ 2026 | Прогноз на основную волну

Ajouté : 2026-05-26

[00:02:07]Pow-pow-pow. Hello everyone, my dears.

[00:02:09]I am Denis Markov and now we will study chemistry. So, I'm wearing a cap today or I'm wearing Oh, look how funny my hair is smoothed out today. No, let me wear a cap today, because today I’m not feeling like it today. I was too lazy to wash my hair, I’ll tell you honestly, yes. In general, eh, 2 days before the start of the dressing room I'm just in a rush.

[00:02:28]And, in general, there is absolute vanity everywhere. Here. And here, as I understand it, we have those who haven’t signed up for the dressing room yet, because everyone who signed up for the dressing room is probably sitting in Danir’s dressing room, because he also literally started his dressing room just 5 minutes ago. He already has some day there, the kids are already preparing for mathematics with all their might. But today I think I won't take up much of your time, because, honestly, I only came up with this broadcast yesterday because we completely forgot about the need to make some kind of forecast. Plus, you really liked the TikTok forecast, so here I'll go into a little more detail about what I think might actually happen at the OG and what I'm counting on. Yes, I just, well, I just have a feeling that this might come across, yes. This is very much my doing. You have to understand right away that yes, this is just my opinion, these are my feelings, they may not coincide. But either way, if you do it again, you'll be a little more prepared than everyone else. This is the most important thing that I want to convey to you now, actually. Okay, now I'll open VK for myself. Just a second, please, because I have a complete nightmare going on here. Pam-pam-pam. Posters.

[00:03:40]Yeah, great. So, here it is.

[00:03:43]And by the way, our TG aa broadcast didn't start. Everything is absolutely terrible, just terrible. Hello to the coolest, the best and the most talented teacher. Okay, well, where is a-e, dad-pam.

[00:04:00]I'll dig up the link now.

[00:04:03]Twenty three. Yeah. What will happen in the chemistry exam? Forecast for the main wave. Now I'll dig up a link for myself so that I can see VK too, so that I can read the VK chat too, because, well, this is not good, right. Why is there no broadcast on Telegram? Because it didn't start, unfortunately. Yeah, that's it, VK, hello. I see your chat too. So, well then. Ah, pawpaw. Denis, where are the broadcasts on Telegram and Rutube? TG didn't start, I tried. That one, and, to be honest, not this one, I didn't even try, but in general I can start it now, just a second.

[00:04:44]I just need to open the chat there now.

[00:04:48]So, then we need to wait a second, if And who really is there who wants to watch it on Rutube? I just didn't launch the root, there were only two poor people sitting there and that's all, and there was no particular point to it all. So here it is. Mm, let's do it this way. Now I need to do this. The URL is the key.

[00:05:30]Okay, I'll try to run it now.

[00:05:37]Okay, well, it seems to be going well. Yeah, it seems to be going well, everything should be okay, right? In short, who's who on Rutube, come on in and take a look.

[00:05:51]I hope Denis will actually make a useful prediction. What does "here" mean? And what in your plan is a useful forecast? Does this mean it will match or not match or what?

[00:06:01]Uh, I'm really interested in what a useful forecast means. They just wrote something useful. It's like, if I do a weekly one, yeah, then, well, it won't be the same. Something is not clear to me, in short. That's how it is. Well, in any case, it refuses to work for us too. Unfortunately, I don't understand what's wrong with it, but it seems that, yes, it seems that the ruble kind of matches. Yeah, I got it. Well, okay, okay. Anyway, let's get started.

[00:06:33]Yes, we have already spent a lot of time together.

[00:06:36]Today we are writing a variant or a random task. Denismbova explains thanks to his video about sulfur preparation for the SDA. Nikita is handsome. So, aa, let's go.

[00:06:46]Let's start by skipping all questions that are off-topic. What are we going to do today? Since I didn't prepare for the broadcast today at all, I want to, first of all, remember, yesterday I posted assignments from Statgrad on the Telegram channel for you. My assistant sent me these files today, and I was really impressed by the tasks that were there. They were really really complicated. Well, anyone who was in the channel saw that some really crazy stuff was going on there. I want to look at other tasks and, if anything, calm you down or, on the contrary, scare you, right? That is, well, let's look at the tasks, at the realism of these tasks. I will explain the task to you, naturally, we will look at the overview and solve the most difficult tasks. That is, we will definitely solve 8 9 10 and solve the chain. Ah, so there will definitely be a little bit of Statgrad today. But before we get to Statgrad, I want to tell you right away that I definitely think it needs to be repeated. I talked about this on TikTok. I'll tell you about this again today, yes. What exactly will need to be repeated? The good news is that I don't think this will be anything new for you today, because if suddenly, yes, someone isn't subscribed to YouTube, Telegram channel, here's the QR code, here's, well, TGC Denis Markov, come on in. From here I will take the topics that I think you need to repeat. We need to open this. What? Mm, where did I get this? It was in chemical properties from scratch.

[00:08:24]Let's open the slide right away and see what the forecast will be in my opinion. I talk about this everywhere and it will be really cool if this really happens for someone. But the question is how widespread this story will be. And I think that there will be quite a lot of nitrate decomposition in this OGE.

[00:08:44]We often see the decomposition of nitrates in chains, we often see some problem areas with this. That is why the decomposition of nitrates will definitely need to be repeated. file. All chemical properties from scratch in the Telegram channel. But it’s better, of course, kids, to always repeat systematically. It 's Monday, today is Saturday, so our course " The Dressing Room" starts the day after tomorrow, right? Aha, let me tell you a little about the dressing room, and then we’ll continue. In short, in the changing room we will review all the material you need for the OG in chemistry. I just want to open the schedule for you now and show you how we will work. What's the schedule? Let me show you right away. We are still in the final stages of work on the dressing room, but in the next 4 days that we will be working on it, it will be ready. And now I’ll just show you how much material we’ll be covering in the dressing room. Look, this is this, yes, I’ll show you briefly. It's even less than one day. Look, this is the first block, these are the first 2 hours, this is the second block, this is the third block, yes, the first day is very long. Here on the right there are workbooks and notes. That is, we will study all this material on the first day. Here we have the structure of the atom, the periodic table, and so on, right?

[00:09:58]Let's get a little closer, I can do it like this, right? Well, that is, you can see our plan for the changing room. I'll be talking about task number one here, specifically with examples and more practice.

[00:10:07]We disassemble the atom at exactly the level you need for the OG. If anyone needs more details, I'll send some videos to watch, but I'll also tell you a little about some of the more complex parts. Mendeleev's periodic table.

[00:10:20]Chemical bonding, types of bonding, ah, I'll tell you about special cases, yes. Then practice, valence and oxidation states. And right away we pulled out just two problems on valence from the FIPI problem bank. And I will show you these two tasks. One ultra-complex, one hyper-simple. Here are two tasks. Then block number three is the complete classification of substances and the classification of reactions. That is, oxides, hydroxides, acids, salts, I’ll tell you everything. And finally, we talk about reactions, that is, what kinds of reactions there are. And this, imagine, is only the first day. We still have other days ahead of us, right? That is, the second day. Here we are discussing ROVR and so on, right? That is, here the day is, of course, shorter, but there is no less material. general chemical properties.

[00:11:05]Day three and day four are the twenty- second, twelfth, seventeenth and twenty-third tasks. That is, there is a lot of information here that we will analyze together. And it turns out that you will repeat the material and deepen it at the same time.

[00:11:21]We have standard stories on the channel about how guys just skyrocket in points. That is, now I will try to find for you, yes, uh, pam-param-pam-pam the coolest ones.

[00:11:36]What, what's there to steam about? Let's do it this way. Yes, no, wait, this Telegram channel is a bit personal, so I'll just open the reviews, yes, reviews, yes. So we open the reviews, open the search, and type in " dressing room." I usually do this to show you some reviews. That's it, let 's open it and read. Denis, hello. The time for my review has passed. Here, we simply read about the precursor. Next came the dressing room, very exhausting, but I’m sure it helped me remember everything before the exam.

[00:12:03]In fact, I felt quite confident because I knew that I could do everything and solved all the tasks. As a result, I have 38 with 38 being the maximum. Insanely pleased with myself. Thank you, Denis. Without you there would not have been such a result. That is, well, here you have to understand that the person started studying with 12 points. Let's see further. Denis, thank you very much.

[00:12:20]I left the OG and completed all the tasks. Before this, I prepared for the exam very indirectly, hardly looking into the details, but thanks to you, I learned to solve all the tasks in the second part, especially the problems that were not added for me. The dressing room of this topic. That is, well, you can do it yourself. There were two sample tests at school, both for 35. I signed up for the dressing room to repeat everything. To my surprise, I learned a lot of new things. As a result, all my fear of the exam disappeared, and I went into it with a fighting spirit. I came, I saw, I conquered, I got 38 out of thirty. Well, this is just completely imbalanced, I think. Really tough. In short, here's the thing, guys, you can also take a look at what they say about the changing room.

[00:12:57]You can also sign up for the changing room, guys. The recording is open, and we will analyze everything that I showed you. Here. And the most interesting thing is, if you suddenly, oh, let's get this straight, so you understand, look, first of all, you can click "I want to take the course" right in the reviews. This button leads to Sasha. This is SashaManager UMCOL. Here, you first receive a few pre-written messages, then a manager connects with you, who will answer everything, she will tell you everything, everything, everything, help you sign up, help you choose a rate, because there are several rates in the changing room. Well, the standard one with verification, without verification and with ultra-strong verification.

[00:13:37]Here. If you're subscribed to the channel, there's also a "I want to join the course" button.

[00:13:41]Click on it and you'll be taken to Sasha, she'll tell you everything. That is, there are no problems here. Here. If you guys are still hesitating, it's really hard, you don't want to spend money on the course, then on Monday at 9:00 a.m. we'll be opening up the first two hours of the changing room to the public. That is, what I showed you in the dressing room, yes, that’s the first day, these first 2 hours we will show in the public domain. There are 108 slides here. These are the first 2 tierretri tasks.

[00:14:16]Considering that we go through all 23 tasks in the dressing room, this is a small part. At 9:00 am it's Moscow time, right? This is Moscow time. Any time I name is Moscow time. That's why, ah, come if you have any doubts. But I'll tell you right away that if you like it, and you want to sign up, be prepared to do it quickly, because there will be literally a 20-minute break between the first block and the second block, which is scheduled to start at 11:00.

[00:14:47]So, if you take the first block with me in the open access section and then want to go to the second, you'll need to sign up right away, fly to the platform in Umsk, yes, ours, and continue the lesson from there. You can contact me.

[00:15:04]Margarita. Okay, okay, Margarita. But I can forget. Here. OK. Well, that's the story, ah, that's the story. It seems like the forerunner told me everything. Again. In the waiting room we go over all the tasks.

[00:15:16]We start on Monday. From Monday we study for 4 days. Then there's a short break to prepare you for math.

[00:15:26]And then another 2 days to finish everything. But the most important thing will begin on Monday. I will give you almost the entire exam in 4 days. On the fifth and sixth days we will have the chemistry of the elements left.

[00:15:40]We will analyze the most complex reactions. Here. And on the fourth, right before the exam, we will go over safety precautions and solve a lot of problems so that you can experience them in practice. In general, I redesigned the entire dressing room more for practical purposes, so that we would not only study, but also solve a lot of problems. We have, well, I’ll tell you now, on the first day there are 46 tasks, so two options. Well, the tasks there are simpler, of course. Second day 29 tasks. The third day is loading, the third day is 33 tasks. Well, in short, we will be solving 30-40 tasks a day from the FI. No, the assignments aren't from the FI, but they're terribly close. So, here, in this anteroom, my second goal was to make the practice as close to the exam as possible. I threw out everything that was simpler, everything that was more complicated. I only took the EMI, plus remember, yes, that this year I collected for you all the tasks from Bank One with FI, all tasks number 10, 18, 19, 21, 22. That is, I simply solved all these tasks, I already understand what level the exam is, not just in words, but in my brain. So, do n't worry about the task in the dressing room, it's a FEP format task of the same difficulty. OK? OK. That's all.

[00:17:03]Decomposition of nitrates.

[00:17:04]Nitrate decomposition, guys, I think this will be a problem for many people this year. Again, this is just my gut feeling. Just my gut feeling. If I'm wrong, that's even good, because the decomposition of nitrates is a rather complex topic. This is the story we have. The decomposition of nitrates is an OCR, meaning that the oxidation states change. What is special about it? And the reaction can go in three different ways depending on what metal you have here. That is, for example, if we take sodium NO3, an active metal, a metal that is to the left of magnesium, and these metals are first, then we form nitrite.

[00:17:44]What's the joke? Sodium is an active metal. Read, he seems to be an extrovert. He wants to have a lot of friends around him. Therefore, when they try to dismantle him, he does not bribe, he remains with his friends.

[00:17:58]In this case, nitrogen changes its oxidation state from +5 to +3.

[00:18:03]Ah, and oxygen from min2 to zero. Well, oxygen will change the degree of oxidation everywhere. Here two, here two. The reaction has leveled out. Now, if we talk to you about, well, less active metals, which are most often encountered.

[00:18:19]Most often, you come across, well, for example, let's go. Most often, I feel copper. Decomposition of copper nitrate. Cuprum NO3. Firstly, copper nitrate, despite the fact that it is located after hydrogen in the activity series, still belongs to the group of moderately active metals, that is, it follows the second scenario. Here we have formed PRM + NO2 + O2. Copper is already like normal here, right? Just imagine that you have a regular guy or a girl, it doesn't matter, and he also hangs out in a group and the group starts to fall apart under the influence of external circumstances. I don’t know, some moved to another city, some started playing sports. Well, it happens, yes, friends kind of communicate, communicate, and then their life paths somehow diverge. Here. And copper as a norm.

[00:19:14]That is, our sodium was very active, and he was kind of an extrovert. He left the company, he forced them to get ready.

[00:19:20]Copper is normis. What do normies do?

[00:19:22]They leave one friend from this company. They just chat with him and start to become very close friends with him. That's what happened to me, for example, right?

[00:19:31]We used to be a big group, but now I only communicate with one person because we have become best friends. We communicate very well. That's why copper does the same thing here. Moreover, what is interesting is that the oxidation state of copper stumps does not change. It changes for nitrogen from +5 to +4 and for oxygen from -2 to zero. Try to balance this reaction yourself.

[00:19:50]Here it is necessary to draw up an electronic balance. He's cool.

[00:19:53]He's cool. Here. But you need to look at the chemical activity series of metals and know what compounds are formed.

[00:19:59]Nikita, yes, this is, in principle, an answer to a very large number of aa reactions. In principle, how to work with a range of metal activities? Just a reminder. Look, in the series of metal activity we have three main intervals in most cases, but there is an exception, I will tell you right away. In the series of metal activity, we have active metals from lithium to about aluminum, actually. Then from manganese to hydrogen and low-activity, that is, these are active, moderately active, low-activity metals. Let's remember these intervals. Active metals react violently, for example, they dissolve easily in water. We have metals of medium activity; they react poorly even with water, and they often require heating. There are low-active metals, they react more weakly, but there are several different options there.

[00:20:53]Here. Yes.

[00:21:06]How do you know when to prepare an electronic balance sheet and when not? Masha, you just need to watch the change in oxidation state. Look here, nitrogen was +5, but now it’s +4. The oxidation state has changed, which means that electrons are moving from atom to atom. This means, ah-ah, we have a transfer of electrons, and we need to balance these electrons, which means we can draw up an electron balance, which is what we need. So, this is the first thing I think we'll come across - the decomposition of nitrates. Second. Oh wow, sorry, my screen just went blank for a second. The second point I would like to touch on is something that could very realistically happen and what I think will happen this year. Just a second.

[00:22:14]complex salts. Exactly. Yes. Anyway, I talked about this on TikTok, and I'll talk about it again as we go along.

[00:22:23]And we have quite a lot of complex salts. And here I even have an argument. If the decomposition of nitrates is my personal impression, then look, and if we open the demo version of this year, look, the demo version of OG-2026.

[00:22:44]You see, a demo version of OG-2026.

[00:22:48]Here we have it. I was hooked back in September when I watched it. These are basic complex salts. Here they immediately pop out at us. That is, previously complex salts were also encountered, but they did not balance the previous equation. Yes, please balance it yourself.

[00:23:08]Here. That is, they were also found before, but they were still questionable. And now Dmitry Yuryevich Dobrotin. I don’t know to what extent he personally compiles demo versions, but I read this as a hint that we won’t be asking any more questions about complex compounds. Will they happen or won't they? There definitely will be, because they are right there in the demo version. You need to see this for yourself and record it. This is a minus, yes, because many people are afraid of this task.

[00:23:46]Ah, but what's the plus? In fact, there are not many reactions that involve complex compounds.

[00:23:56]I'll tell you all about it again in the changing room. Moreover, this will be our third day of the changing room. We have it right here, I just dug it up. This is directly the third block of amphotericity, amphoteric compounds and acids. It's also like we're talking about amphotericity first, right? Here she is, all of which she is like and what her usual reactions are. And then we analyze all sorts of crazy stuff like this, that is, dissolving zinc in alkali and releasing hydrogen. I will tell you all this, I will explain all this and I will explain why it is different in solutions and in melts, how complex salts are formed. We will then enter all these reactions into one table. I'll give you even a little more than you need. Again, everything is in a short, condensed format. That is, you see, here we have, as it were, a small block of theory.

[00:24:47]We have a problem right here, it’s consolidation. We will write reactions together, and then practice. That is, here you and I solve the problems right away. Moreover, we will analyze the ninth, eighth, and tenth tasks, and even the chain. Everything related to complex compounds.

[00:25:07]This is it, this is the story. So this is what concerns complex compounds for us. Now it is like this. I see your questions about the tasks, about the reaction. Now we'll balance everything out.

[00:25:20]I see that you are really determined to work.

[00:25:21]I'll tell you now. So, let's go. Let's get this straight first. Here we have aluminum H3 and potassium H4 solution.

[00:25:29]What's the joke? The funny thing is that if aluminum OH3 reacts twice, we have an amphoteric hydroxide. Amphoteric hydroxide is one of the three. We have beryllium, zinc and aluminum. Here. Let me tell you right here. We have a cool sign there. This sign here is cool.

[00:25:49]Here. That is, you see, if a simple substance and a solution react, then a complex compound and hydrogen are formed. And hydrogen. Let's see.

[00:25:58]And here we have hydroxide. I was looking in the wrong place. Ah, let's see. Amphoteric hydroxide and solution. Here it is with us. A simple complex compound is formed. Okay, let's go. Or simply a complex, the third answer option A3.

[00:26:12]I'll tell you why this is so in the changing room. Next is amphoteric oxide and Calyo H. See, TV. What does TV mean? Solid. Solid. That is, an oxide. Let's see. Amphoteric oxide and melt. Melt means the reaction occurs with a solid. Here we have it. If with a solid alkali, then Kliy2 Zinc2, that is, some kind of salt, where it is amphoteric, where the metal with amphoteric properties is in the middle. and water. We are looking for this answer option. That is, we are looking for something like potassium aluminum 2, a good option.

[00:26:44]There is hydrogen and there is water. Of course we need water. We need water. This is the fifth answer option. That will be five. Just a second. Here it turned out rather ugly for me.

[00:26:55]3 5 And the last thing. Simple substance and alkali solution. R solution. Let's look here.

[00:27:01]Simple substance and alkali solution. This is what we have: a complex and hydrogen.

[00:27:07]Complex and hydrogen. The fourth answer option. 354. The correct answer to this question. I have chemotherapy on June 5th. What will the changing room end in June? Yes. Look, there is a very important point here. This is exactly the right question forрif asks.

[00:27:23]Look, the schedule might confuse you about the changing room, but let me show you right away.

[00:27:33]Look, the dressing room, here is the schedule, these are the six main days.

[00:27:38]You see, June 4th is the last one. Now I'll do more so you understand. Here is June 6, the sixth day, and the last one. Next come the seventh day and the eighth day, the fourteenth and June 17th. This is extra days. They are for those who take the exams on June 16 and 19. If you are handing over the fifth, skip altogether. You can come to this. You can support the guys. You can tell them: "Everything is really easy there." You can answer their questions in the chat. But you don't have to come to this. These are not super important webs for those who passed on the 5th. Yeah. We captured this moment. This is what concerns the changing room, again. Now let's move on. What task did we solve there?

[00:28:30]Decided. You also asked to equalize this reaction. Let me tell you. Look, there is more nitrogen here, but here is what is interesting. Now I hope that it will be erased, otherwise it’s already starting to lag. Like this. Oh, op, op, op, op, op. Yeah.

[00:28:52]See what's important to understand here.

[00:28:54]Nitrogen. You have at least two atoms. That is, you have two nitrogen atoms, two nitrogen atoms will change the oxidation state. So what am I writing? N + 5 was, accepted one electron.

[00:29:09]Ideally, put twos here. 2 x 1 2 x 1, but it will even out without that. If anything, if you did it without any twos, that's also okay. Oxygen. Here, a two is necessary, because a simple substance is formed. You see, simple matter. That is, O2 is formed.

[00:29:26]Damn, it doesn't work for me like that. O2 is oxygen for you, so we take two atoms, it was -2 minuchero.

[00:29:35]That is, each atom gave up two electrons.

[00:29:38]Now we put 4 2, we reduce 2 and 1.

[00:29:43]Two for nitrogen, and for nitrogen that is already in twins. For twins. This is what is important. That is, here I put two, and here I put four. For oxygen I put one. That is, I don’t put anything in place, essentially.

[00:29:58]So what is the result? Copper is a two and that's it. The oxygen needs to be checked. Oxygen 3x 2 6 12. 12 oxygen before the reaction. Now 2 + 8 + 2 is also 12. Now everything is balanced correctly.

[00:30:18]Question about chain verification.

[00:30:20]Will the exam examiner check solely based on the codifier or on his own knowledge? Based on my knowledge too. Guys, if you're worried about checking the second part, there will be a webinar with an expert in the pre-session room on June 1st for about an hour and a half. Let's look at the design of each task. Our expert, who will work with us, is a current Unified State Exam expert in chemistry and a senior OGE expert in chemistry. She personally oversees how experiments are conducted and trains the OG chemistry experts who check your work.

[00:30:52]She has already been to the basic course twice, she explained everything very well, very clearly and very supportively. After a webinar with her, you won't have to worry about your design. That's why there's another bonus in the piggy bank of the fact that you need to sign up for the pre-ban. OK. And there was decomposition of nitrates. I showed you the complex here, right? Let us now write down the decomposition of nitrates, complex compounds.

[00:31:18]Complex compounds. This is what I recommend you repeat. Don't worry, there wo n't be much. And then there are metals plus H2O. This is what I want to tell you. Metals plus H2O are also an important thing. We This is such an important thing, and I realized that I am so mm in one moment only in the dressing room I tell it. And it needs to be told so powerfully that I added it to the cheat sheet. We have separate cheat sheets for the changing room. Here they are, the spurs. We do them every year. Every year they improve. These are the modern cheat sheets for this year.

[00:31:55]By the way, I have already posted these cheat sheets somewhere. Here. But here is a diagram like this: metals plus water. This, by the way, is in addition to the question of how the table, or rather the metal activity series, works. Here you have active metals of casting from aluminum, from manganese to lead and to the right of hydrogen. The way they react with water. Active metals form hydroxides, and moderately active metals form oxides. And here, look, there’s an interesting point: you don’t have it. What's it like there? Shift P. Yeah. And iron, when reacting with water, forms hydroxy, oh, iron acaline 3O4. This is also, by the way, a special reaction, we will also talk about it when we talk about iron and the interaction of metals with water. I'll tell you about this anyway, because, well, it's important, you really might come across it.

[00:32:56]Here. Well, here are, in principle, three topics that I strongly recommend you repeat, but which, in principle, we have already repeated. And this, I think, is something you might actually encounter on the OGE. Well, let's see, I guess, what Statgrad gives us, because I'm very interested in what they'll throw in, what they can give you. Statgrad, if anything, as a rule, Statgrad gives assignments that are more difficult than those on the exam. But I'm interested in finding out what's going on this year. So, Statgrad from April 1, twenty-sixth year. Let's just look at it for analysis purposes, and if anything, let's take it apart. So.

[00:33:42]So, they ask how to sign up for the dressing room and is it necessary? Ah, sign up for the dressing room, well, it’s advisable, you have to understand that this is a paid course, right?

[00:33:53]How to sign up? And in this Telegram channel, there's a button here that says "I want to take the course." And we get to Sasha’s manager. They probably ignore me because I never answer her here anymore. I always show you how it works and never answer. Here. But for you, by the way, it works. Plus, there might be a slight delay because there is currently a very large influx of students wanting to enroll. Plus, by the way, please keep in mind that the seats are on the Pro tariff, the Pro tariff is the one that has a check of the second part. This means that the curators will check all the tasks in your second part and give you comprehensive feedback, indicating what is correct, what is incorrect, and how to do it better. Aa, for this rate, due to the fact that the number of curators' pre-banyas is limited, places may run out, so do not delay too much. Well, plus we start on Monday already. There is no VP mission in Statgrad. In Statgrad the tasks are more difficult, they write them themselves. Let's see. The first task. Base. Second task base.

[00:34:51]Third task base. The fourth task is basic. Fifth basic. Sixth basic. If anything, you can just google statgrad. I simply don't have the right to post this anywhere due to copyright. Here. But you can find these options yourself, if necessary. Which two statements are true about the characteristic?

[00:35:11]This is also a base. This is the base.

[00:35:16]What reacts with cream oxide? Let's decide on chemical properties, because they are the most problematic. What reacts with silicon oxide? It's funny, by the way, that they didn't write what kind of silicon oxide it was. Silicon dioxide is, of course, implied here. What does it react with? It is an acidic oxide.

[00:35:30]Acidic oxide does not react with acids. Does not react with water, reacts with alkali and reacts with hydrofluoric acid. Cool. This may be on the OG, this is normal. It's like, you know, this kind of melon, right? It's edible. Like TikTok has this thing. Here. Another question about the indicators in the seventeenth task. With the help of an indicator we can only distinguish acid from alkali. No, you can also distinguish alkali from salt. Let's also say that a strong base is formed from an acid from each other. Oh no, it's hydrolysis. I understand that you are hinting at hydrolis. Hydrolysis is usually not performed on OG. I missed a lot. Ah, well, that's enough, but actually it's normal.

[00:36:14]Why hydrofluoric acid? She's acidic. And this is a special property of silicon oxide 4. I'll show you now.

[00:36:21]Since I started showing everything using materials from the changing room, let me also show it using materials from the changing room.

[00:36:27]This will be our fifth day. This is the chemistry of these A, wait, we haven’t finished the fifth day. I won't show the fifth day, just some small things.

[00:36:43]Here.

[00:36:45]Yes, I'll show you this sign, I won't show you the rest yet, because we're still working on it. Here. And silicon as a simple substance and silicon as an oxide, that is, lycium 2 reacts with hydrofluoric acid. It's just a special property of flint. And what’s most interesting is hydrofluoric acid. Why is it called that? It melts glass, and silicon dioxide is glass. Like this. So here, yes, here in Statgrad they simply threw you an exception. They just stupidly threw exceptions at you, yes.

[00:37:24]Next, mm, about indicators. The environment of a solution of any salt is always assumed to be neutral. Within the OG, yes, within the OG you perceive that it is neutral everywhere. Well, in general, there are no such moments for you, so that you, in short, the task is compiled taking into account the fact that you do not know about hydrolysis and about the solution environment, that if, for example, a salt is formed by a strong base, a weak acid, then there is a weakly basic environment, you don’t know this. It's like this isn't usually taken into account.

[00:37:55]OK. The ninth task. We discussed this yesterday in the Telegram channel. I showed this task. I was completely shocked, because it was brutal. This is just brutal. Usually, when we give, I explained it yesterday, yes, let's take cuprum O, for example, we get cuprum O, we add carbon to it.

[00:38:15]Kuprum O. We are restoring metal. Carbon monoxide plus pure copper. But when active metals react, we form carbite, calcium C2 and CO. Fifth answer option. Under B super easy reaction, eighth grade. The fourth answer option.

[00:38:32]Basic oxide plus acidic oxide. Underneath is also tin. Hydrides. Hydrides are not found. And do you know what else is most interesting? I do n’t think this reaction is OG at all. It seems to me that this is much higher than the OG level. But when we were studying the chemistry of elements with the guys in the basic course, I’ll tell you right now, it’s the chemistry of elements. Ah, we were analyzing hydrogen.

[00:39:03]If anyone is on the course, they will help them.

[00:39:12]Pum-pum-pum-pum-pum-pum.

[00:39:15]No, stop, wait.

[00:39:17]Where did I have it? But I gave it for the reaction with hydrides simply because I thought that maybe I would come across it.

[00:39:25]See? That is, I will give you this in the dressing room, because the analysis of the periodic table will be in the course. Of course, of course, it will be on the very first day.

[00:39:36]Here. And this, in short, is a very important thing. Or rather, how important, oh my God, he got all confused, got distracted by the question and got lost. Anyway, I mean, you have, um, I just got lucky here, these hydrides. For some reason I thought: “Damn, what a strange reaction, it’s logical, but I’m really afraid that she might get caught.” And I usually always give a reaction like: "No, you won't get it on OG, but Statgrad is pushing it on you." Again, this is Statgrad.

[00:40:06]Statgrad is usually more difficult than the real OGE in chemistry, but nevertheless, this is what they kind of force you to do. Here we form hydroxide and water.

[00:40:16]The explanation, if anything, was yesterday.

[00:40:18]Let's take a look. The tenth task. I didn't watch. Here it says P red.

[00:40:23]By the way, this is red phosphorus. It doesn't create any meaning for you at all. You don't give a damn about him at all. Let's look at phosphorus. Simple substances for a simple substance. Phosphorus burns and phosphorus reacts with metals. Two. Ferrum 2: amphoteric oxide dissolves in acids. One. NH4 chlorine salt.

[00:40:44]Reacts with alkali. This is a super easy task. This is a super easy task. If you come across this on the OGE, consider it easy. What date will the first dressing room be? The day after tomorrow, Monday at 9:00 am.

[00:41:09]I'm concerned about the sixth option, number 17.

[00:41:12]You can take apart the collection. Dobrotina.

[00:41:15]Well, no, I won’t get distracted by Dobrotin’s collection now. But okay. Tenth.

[00:41:19]Just imagine, yes, the ninth is so hard and the tenth is so light. This is just total crap. The eleventh task. Base.

[00:41:28]Chromium oxide, by the way, appears.

[00:41:29]Cool.

[00:41:31]Twelfth.

[00:41:34]Normal. It's normal, but a bit complicated. Here, by the way, concentrated nitric acid doesn't give you anything.

[00:41:41]Thirteenth.

[00:41:45]Normal.

[00:41:47]Fourteenth. Standard fifteenth basic. The sixteenth is probably the base one.

[00:41:58]Well, yes, more or less.

[00:42:00]Seventeenth norm.

[00:42:06]By the way, this is cool. Salt and acid. I would like an indicator, but finolflin won't work.

[00:42:13]Here you need to take calcium carbonate.

[00:42:16]Cool task, but also basic.

[00:42:19]Nothing like that. Why do moderators respond with parentheses? They're just millennials.

[00:42:25]We're all just a little bit like that. No, I love brackets myself. That's what I watch: a ton of TikToks. I'm rummaging around for the small Six7, the medium Six7, the large Six7, but I can't get the brackets out of me. I don't know if this has become cringe, but it's like my parentheses. All.

[00:42:47]This is what Tanya taught me. Mom, a little sex. And if the salt is acidic, is it worth taking indicators? No. M no. But in general I have never seen sour salt in the seventeenth.

[00:43:01]There, in short, you need to start from whether there is a more obvious way.

[00:43:07]The brackets have already taken root, haven't they? I think that's part of it.

[00:43:11]Look at this one. Oh my God, this is totally brutal. Phosphamomagnesia, double salt.

[00:43:21]Horror, horror, just horror. Actually, I write in brackets; I'm a real, hardcore zoomer. Okay, fine. Agreed?

[00:43:31]You are all zoomers here.

[00:43:34]OK. The nineteenth task. Well, that's the base. Everything is easy here. Well, I mean it's not more difficult than OG.

[00:43:43]Norm, norm, norm, norm, norm. Well, by the way, look, the decomposition of carbonates. In general, there has been a lot of decomposition coming across lately. There is no hint here, but decomposition must be used.

[00:44:02]What if we go for an OG with precipitation colors? Mm, they just wo n't let me in and that's it.

[00:44:09]Here is the problem. No, guys, I won't have time anymore.

[00:44:14]I have to go soon. I'm saying, like, I had an hour of free time today, and I decided to hold an open class for you, because, well, I thought, like, we haven't held an open class for a long time. I want to do something, so I say: “See, I have two slides from my presentation and that’s it.” That's why I'm just sitting here with you now, enjoying myself. And I will not analyze all the tasks.

[00:44:37]Firstly, well, it’s because there’s no time. Secondly, because, well, we do n’t need it now. Now, if you want to decide for yourself in advance, this will be super necessary. Okay, let's do it. Are there any answers?

[00:44:48]Damn, no answers. Yes, there are no answers. There is another option here. Let's take a look at that too.

[00:44:58]Ah, what do we have here? Ammonium sulfate, potassium phosphate, sodium hydroxide, silver nitrate.

[00:45:07]Basic task: there will be a yellow sediment and this will be. Oh, yeah, by the way, for all the newbies, um, I'll tell you right away, we'll be conducting experiments during the exam, oh, during the OGE and in the changing room. I already have some sediment here. Let me show you something so you understand what we'll be dealing with.

[00:45:27]Let's take argentum inside. Is there any open one? Yes. Here. And we need some kind of phosphate, right?

[00:45:52][ __ ].

[00:45:57]Oh, in short, in this experiment and at the OG we will also do this, well, I mean, in the dressing room we will also do this with you. What do we need to do here? Here we have ammonium sulfate. So, let's do it this way. We have ammonium sulfate NH4 twice SO4.

[00:46:21]No, I'm writing in the wrong place. I'm writing in the wrong place.

[00:46:26]Ah, pam-pam-pam. Let me write it down here.

[00:46:30]NH4 is twice SO4. That is, it’s like I already knew this, yes, that it’s ammonium sulfate. And in the second test tube there will be potassium phosphate. Kali 3 PO4. Now what do I need to do? I take silver nitrate from the reagents here, here is argentum inside. And as it will be on my OG, I’ll show you right away so that you have a little understanding of how everything happens.

[00:47:04]That is, you go to the OGE, raise your hand, and say: “I want to do an experiment.”

[00:47:12]So they take you, most likely, to another room where reagents have been prepared for you, and they give you two vials.

[00:47:26]So, one, it says one here, and the second one, it says two here, right? You take a little bit of the substance from the first bottle and put it into a test tube like this. You do n't need much.

[00:47:40]Take the second bottle and also pour the substance into it.

[00:47:51]And now, for example, thanks to my knowledge, I know that argentum NO3 and potassium 3PO4 should give a yellow precipitate here. Yellow sediment ka. Argentum 3 by 4. But here, I think, nothing will happen.

[00:48:14]Ah, the only thing is, my substance is a little bit wrong. Yes, I have the wrong substance. Okay, let's take each of the substances. This is how we open it.

[00:48:27]Let's start dripping. You will need to do this yourself during the exam. Look, you see, it’s already started, oops, the sediment is already starting to fall out. Let me drip a little and show you. Well, this is what it looks like. And you write down a yellow precipitate. Then you take the same argentum from the inside and add it to another test tube. Here we will get a white precipitate, because I took chloride instead of sulfate.

[00:49:00]Here.

[00:49:02]And these are the kinds of things. Do you get points for filling out the table without the written responses? Yes, but everything must be written down.

[00:49:10]That is, there should be no signs here, let's say there are no signs there, and here you write the second substance. And if all three lines are filled in completely, then that’s three points. Filled out correctly, right?

[00:49:28]That's how it is.

[00:49:30]That's the story, guys. Now I know that the required substances in the conclusion must match reality. But if I write the reagents in a different order than in the answers, but everything else is written correctly, the question is still not completely clear.

[00:49:45]The only thing we know for sure, as the expert explained at the webinar with me, in the main course, is that mm is definitely recorded in a separate journal.

[00:50:01]Did you do the experiment or not? This is clearly noted in a separate journal.

[00:50:08]Here. Can I put a dash? Uh- no, that's not desirable. It’s better not to leave a dash, but to write “no signs”, or something like that. So, guys, in general, these three points are what I think will be in the OG in chemistry. These are three points that I strongly recommend repeating and remembering.

[00:50:29]I think this is something that will be seen a lot this year. I also remind you that the day after tomorrow the course "Pre-bathroom" starts. We have six main days, four of which are just brutal stuffing. That's a lot of points. The first day is the base. Task 1 7 and 11. That is, we will analyze eight tasks in one day. Next are the thirteenth, fourteenth, fifteenth, twentieth and eighteenth, nineteenth.

[00:50:55]And six more tasks on the second day. These are the simplest days. That's where we loot the most points. Oh, that's how it is, huh? Oh, that's it. And here you can draw, can you imagine? Here.

[00:51:06]Then comes the third day. Chemical properties. Here is the third day. What's the thrill? The huge thing is that we have chemical properties here.

[00:51:14]We analyze all the chemical properties of the classes.

[00:51:17]The fourth day of the task. Qualitative reactions is the twelfth task. This is the seventeenth task. That is to say, it's just brutal here. And at the end, a chemical experiment.

[00:51:26]At the end. Why do I put the chemistry experiment at the end? Because the task itself is not difficult, but it is important to simply work on it. Next up we have June 3rd. June 4th is already the finishing touch. The fifth day is the chemistry of the elements in full. The sixth day is our safety technique and practice. That is, you see, here we are simply working hard. It's June 4th, the day before the exam, we're working on all of this. Here's how you look at it.

[00:51:59]Go to the waiting room. The changing room is really cool. This is the coolest course in the world that could possibly exist, that could ever be devised.

[00:52:09]Yes, there are separate days for those taking the exam on June 16 and 19, of course. Yes, in advance. Right when you buy the course, well, this is probably a little less relevant, but if you sign up right now, then you get three additional courses as a gift, which you can watch. But since there are 2 days left before the start of the dressing room, you probably won’t have time to see everything.

[00:52:31]I've already shown you the reviews today, but they're great, right? That is, for many people, the dressing room becomes the final push that allows them to achieve a huge, cool result. Here. I'm very glad that I bought the dressing room. Well, Denis, thank you very much, I bought a dressing room and learned a lot of useful things. You are a professional in your field. Your lessons are incredibly interesting and engaging. I'm very glad that I decided to buy a dressing room. Thank you to the whole team for your tremendous work and what you do for each of us. I have 534 points. Here. Well, and there she asked to look at one task. In April I wrote a sample for 11 points. In April, the chat in the dressing room increased by 15 points, and the final rating was four. That is, a person scored 11 points a month and a half before the exam, but ended up scoring 26. The score doubled. That's how it is.

[00:53:26]Where is the chat? Right here.

[00:53:29]Hi all. Hi all. How are you?

[00:53:34]How are you? I finished the lesson early because a bee flew into my house and I was really scared that it would let me go. I flew into your place again.

[00:53:41]She Yes, I thought she flew out, she just hid the dog.

[00:53:44]But the points for the experiment are not reduced.

[00:53:46]Yes, yes, yes. What you do in the experiment does not reduce your rank. The worst thing that can happen in the experiment is that you get kicked out.

[00:53:52]Well, that is, the worst thing is if during the experiment you start doing something wild, like drinking acid or pouring alkali on people, then you’ll simply be kicked out of the exam.

[00:54:04]Here.

[00:54:06]Well, you just don't do it that way and that's it. And if you spill a little something on the table, you won't get a point deducted for it. The transition to organics will now take place. Yes, yes. By the way, I'm playing Tanya. She is a teacher of the tenth and eleventh grades. Also school and my wife. Spouse.

[00:54:27]Here.

[00:54:28]Yes, I am a wife.

[00:54:31]I'm currently writing five points, as much as I can increase it.

[00:54:36]But if you study hard, you can get a B.

[00:54:44]Well, let's finish with this today. We have a changing room there. If anything, you can sign up for two subjects in the dressing room and get four. OMC has changing rooms for all the items you need. And the math class is already underway. It's been three days now, I think, that he's been walking.

[00:55:03]Therefore, you can fly into the changing room for math, Russian, chemistry, biology, most likely. In short, that's how it is. Here. If it's not a secret, why Graeva and not Markova?

[00:55:15]Nickname. This is marriage. She is already known as Tanya Graeva’s teacher.

[00:55:19]Why change your working name?

[00:55:21]I was a worker named Graeva even before I became Markovo, so Yes. Here. Well, yes. Well, that's all from me. I think I told everyone. Yes, yes, I'll check VK again now. I did n't see any questions there.

[00:55:39]If there is a dot between the substance and the water, how to write the paint mass, just add it in the same way.

[00:55:45]Sweeties, bye everyone. Have a good exam. Yes.

[00:55:52]Well, that's all from me. If you just spill it, your points won't be deducted, everything will be fine. That's all from me. It was me, Denis Markov, with you. Sign up for the pre-workshop, join the Telegram channel, wait for the assignments to be reviewed, and we'll give you a real workout. That's all from me.

[00:56:10]Denis Markov was with you again. I'm repeating myself, aren't I? In short, remember, the most important thing is that learning is not boring, but it is boring not to learn everything that is right. Bye, bye, bye.

[00:56:23]M.