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Ch - 3 (Science - 9th) (Science (. (Ch - 3 - Atoms and Molecules (. (Laws…
Ch - 3 (Science - 9th)
Science
Ch - 1 - Matter in Our Surroundings
Ch - 14 - Natural Resources
Ch - 13 - Why do we fall ill
Ch - 12 - Sound
Ch - 11 - Work & Energy
Ch - 10 - Gravity
Ch - 9 - Force & Laws of Motion
Ch - 8 - Motion
Ch - 7 - Diversity of Living Organism
Ch - 6 - Tissues
Ch - 5 - The Fundamental Unit of Life
Ch - 4 - Structure of Atom
Ch - 2 - Is Matter Around Us Pure
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Ch - 3 - Atoms and Molecules
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Laws of Chemical Combination
Law of Constant Proportion
Law of Conservation of Mass
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What is an Atom?
Atomic symbols of different elements
Atomic Mass
How do Atoms exist?
Description
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What is a molecule?
Molecules of elements
Molecules of compounds
What is an ion
Writing Chemical Formula
Formula of Simple Compound
Description
Brief History
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Molecular mass & Mole concept
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Molecular Mass
Numericals
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Formula Unit Mass
Numerical
,
Mole Concept
Numericals