CBSE Class 9 Science Term-2: Compounds and Chemical Formulae: Atoms and Molecules | Concept Capsules

In this episode of concept capsule, we will discuss CBSE class 09 science chapter 3- Atoms and Molecules. We help you in understanding the concepts related to Compounds and how to write Chemical Formulae. We are going to help you gain a clear understanding of compound which is the bonding of two or more different atoms bonded together and also we will discuss how atoms combine to form molecules and compounds and how to write chemical formulae By the end of this session, you will also be able to know about compounds and writing Chemical formula. Needless to mention, the session will help you to successfully attempt the different types of questions and help you prepare for your CBSE Class 9 term 2 exams 👉Check out Concept Capsules for CBSE Class 9 Exam Preparations: /playlist/PLf0dYueVuajapfDI7uCo1kYeuTdifaeLq 👉 Subscribe to "BYJU'S Class 8, 9 & 10" Channel: /channel/UCSIRmKsrk-tYW8p736ZYhfg 👉 Book your Free Class for Grade 8th to 10th (Limited Seats): ✅ Class 8: https://byjus.com/byjus-classes-book-a-free-60-minutes-class/registration/?utm_source=youtube-organic-description-class-8-9-10&utm_medium=hOD9vxpUXZs&utm_campaign=yt-o-class-8-free-trial ✅ Class 9: https://byjus.com/byjus-classes-book-a-free-60-minutes-class/registration/?utm_source=youtube-organic-description-class-8-9-10&utm_medium=hOD9vxpUXZs&utm_campaign=yt-o-class-9-free-trial ✅ Class 10: https://byjus.com/byjus-classes-book-a-free-60-minutes-class/registration/?utm_source=youtube-organic-description-class-8-9-10&utm_medium=hOD9vxpUXZs&utm_campaign=yt-o-class-10-free-trial 00:00 Compounds and Chemical Formulae Class 9 2:59 Elements and their symbols 7:14 Atoms of most elements do not exist independently 8:53 Molecules of Elements 11:41 Molecules of Compounds 13:36 What are Ions? 18:44 Understanding Valency 19:15 Valency of mono-atomic cations 21:12 Valency of mono-atomic anions 22:16 Valency of poly-atomic ions 24:15 Monovalent, divalent and polyvalent ions 26:36 Writing Chemical Formulae 27:04 Rules for writing a chemical formula 29:44 Formula of a simple compound 32:37 Formula of a complex compound 34:25 Q.Which of the following represents a correct chemical formula? 39:38 Matter has mass, and so do atoms 42:37 Atomic Mass 44:36 Relative mass around us 46:10 Relative atomic mass 47:38 Atomic mass of some elements 50:40 Molecular Mass 51:11 Let’s calculate the mass of molecules 52:20 Q. The Molecules mass of HNO3 is 55:19 Formula Unit Mass 56:58 Summary 1:01:06 Update on Upcoming Session #cbseclass9 #Class9chemistry #AtomsandMolecules #Compounds #Chemicalformulae #class9science #Conceptcapsules #byjus

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