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)
In this video, we will learn about the Law of Multiple Proportions, a fundamental concept in chemistry that reveals how elements combine in simple, whole-number ratios to form different compounds. This law not only supports the atomic theory of matter but also shows us that chemical combinations follow clear and predictable patterns. Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! https://www.khanacademy.org/science/class-11-chemistry-india/xfbb6cb8fc2bd00c8:in-in-some-basic/xfbb6cb8fc2bd00c8:in-in-law-of-chemical-combination/e/laws-of-chemical-combination%20draft%201?lang=en Timestamps: 00:10 Introduction to Law of multiple proportions 2:10 Applying Law of multiple proportions on oxides of Nitrogen 5:24 Practice question on Law of multiple proportions 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