CBSE Class 9
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Science
Matter - Nature & Behaviour
Lesson 3 of 9 • 7 upvotes • 14:15mins
What is valency, how we calculate valency, variable valency.
9 lessons • 1h 58m
Overview
9:17mins
Symbols
11:37mins
Valency
14:15mins
Radicals: Part 1
14:32mins
Radicals: Part 2
13:09mins
Writing chemical formulae
14:25mins
Writing chemical formula - 2
13:07mins
Atom and Atomic Mass
14:36mins
Molecules and Molecular mass
13:01mins