Chemistry is the study of matter and the changes it can undergo. In this first unit of class 11 chemistry, we learn the significance of scientific notation, rules to calculate significant figures, the laws governing the combination of different atoms, mole concept, stoichiometry that involves the study of amount of substances that are involved in reactions, and modes of expressing the concentration of the solution.
Curated by: Khan Academy India - English (34 videos)
What is common between a mobile phone, air and our body? They’re all made of matter—and in this video, we break it down to its tiniest particles! From states of matter to the magic of mixtures, pure substances, and compounds, get ready for a fun, visual journey through the basics of chemistry that shape the world around you. Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! (add course link here) Timestamps: 0:00 Introduction to matter 1:00 States of Matter 1:41 Interconversion of states of matter 3:45 Introduction to pure substances and mixture 6:03 Homogeneous and heterogeneous mixture 8:37 Introduction to compounds 10:37 Summary Khan Academy India is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We have videos and exercises that have been translated into multiple Indian languages, and 15 million people around the globe learn on Khan Academy every month. Support Us: https://india.khanacademy.org/donate Created by Nitika Duggal