CBSE Class 9
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Science
Matter - Nature & Behaviour
Lesson 5 of 6 • 0 upvotes • 11:53mins
Lesson 5 Writing chemical formulae rules of writing chemical formula, name and symbols of some ions,formulae of simple compounds
6 lessons • 54m
Overview (in Hindi)
1:53mins
Discovery of Atom (in Hindi)
11:06mins
What is an Atom (in Hindi)
9:18mins
What is a Molecule (in Hindi)
6:29mins
Writing Chemical Formulae (in Hindi)
11:53mins
Lesson 6, molecular mass and mole concept
13:39mins