ОВР и МЕТОД ЭЛЕКТРОННОГО БАЛАНСА: все про Окислительно-Восстановительные Реакции | Химия

👉 Get my guide to all 8th-grade chemistry topics and other free, useful files for preparing for the OGE in chemistry from the pinned Telegram channel: https://t.me/+XhrA1LMcQ54xOGMy I'm Denis Markov, and I prepare for the OGE in chemistry at the Umskul online school. I've trained 3,729 excellent students in chemistry 💪 I develop critical thinking in my students—this is the ability to think for themselves and verify information for its objectivity. 🍓 Prepare for the OGE with Umskul now to ensure you get the best grades. Follow the link to sign up or ask a question: https://short.umschool.net/Q6Mi We'll create a personalized learning track for you in 4 subjects so you don't burn out and get the scores you dream of! With our teachers, you'll definitely understand and love the subject and learn about all the pitfalls of exams. A little about Umskul: — Every eighth student achieving perfect scores in Russia in 2025 studied at Umskul. — We've trained 4,900+ students achieving perfect scores. — 47,000+ of our students have passed the Unified State Exam with a score of 90+. — 80,000+ excellent students have passed the Basic State Exam. — Over 9 years, we've prepared 600,000+ students for the Unified State Exam and Basic State Exam. 🔔 Subscribe to the channel, like it, and click the bell to stay up to date with new videos! 💙 Watch my videos and live broadcasts on VK Video: https://vk.cc/cDzdo5 #umskul #oge #chemistry _________________ 0:00:00 — Beginning of the lesson and introduction 0:00:52 — Analysis of the oxidation-reduction reaction 0:05:43 — Telegram channel with useful materials 0:06:55 — Algorithm for creating an electron balance 0:08:17 — Life hack: how to understand whether an atom has accepted or donated electrons 0:12:26 — How to correctly format OGE assignment #20? 0:13:02 — Practice: Task #1 (OGE #20) 0:14:55 — Practice: Task #2 (OGE #20) 0:17:00 — Practice: Task #3 (OGE #15) 0:18:34 — Practice: Task #4 (OGE #15)