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Chemical Sunday, issue #4. Analysis of tasks on oxidation states from the Unified State Exam (task #3): higher and lower oxidation states, elements with a constant oxidation state. Tests in the format of task #3 of the Unified State Exam in Chemistry: https://stepenin.ru/tasks/common/test327 VK group (infographics, theory, communication): https://vk.com/chem4you Additional materials on the topic of the video in our VK group: https://vk.com/feed?q=%23vopros_3_ege... 👉 More tasks #34 on our website: https://stepenin.ru/tasks/task33 👉 Tasks 34: • Task 34 from the Unified State Exam in Chemistry 👉 All analyses of the 2024 Unified State Exam variants in the playlist: • 2024 Unified State Exam variants in Chemistry 👉 Organic chains: • Organic chains, grade 10 and the Unified State Exam ... 💯🧠 We are waiting for everyone at our Unified State Exam preparation courses: 👉 Preparatory course for USE-2025 in chemistry for grades 11: https://stepenin.ru/go/cfpYZLdy 👉 Preparatory course for the USE-2026 in chemistry for grades 10: https://stepenin.ru/go/rfKv16tF 📚 Workbook on organic chemistry: https://stepenin.ru/tasks/organic-boo... 📚 Book "Thematic tests" (500 pages): https://stepenin.ru/store/book/tests-... 📚 Book "40 options for the USE-2025" (350 pages): https://stepenin.ru/store/book/sbornik30 ================================ Subscribe to our social networks: 🐈 VK chemistry: https://vk.com/chem4you 🦭 VK biology: https://vk.com/bio4you ✈️ Chemical cart: https://t.me/chem4you_ege ✈️ Biological cart: https://t.me/bio4you Our channel on biology: / @biocourse ================================ #egechemistry #chemistry #ege #inorganics