3. Atoms and Molecules

Sections

Navigate through the learning materials and practice exercises.

1. 3

   Atoms And Molecules

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   The section discusses the foundational concepts of atoms and molecules,...

2. 3.1

   Laws Of Chemical Combination

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   The section discusses the fundamental laws governing chemical combinations,...

3. 3.1.1

   Law Of Conservation Of Mass

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   The Law of Conservation of Mass states that mass is neither created nor...

4. 3.1.2

   Law Of Constant Proportions

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   The Law of Constant Proportions states that in a chemical compound, elements...

5. 3.2

   What Is An Atom?

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   This section introduces the concept of atoms as the fundamental building...

6. 3.2.1

   What Are The Modern Day Symbols Of Atoms Of Different Elements

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   This section discusses the historical development and modern representation...

7. 3.2.2

   Atomic Mass

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   This section discusses the concept of atomic mass and highlights its...

8. 3.2.3

   How Do Atoms Exist

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   Atoms of most elements cannot exist independently; they form molecules or...

9. 3.3

   What Is A Molecule?

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   A molecule is defined as a group of two or more atoms that are chemically...

10. 3.3.1

    Molecules Of Elements

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    This section explains the concept of molecules, particularly focusing on how...

11. 3.3.2

    Molecules Of Compounds

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    Compounds are formed when atoms of different elements combine in fixed...

12. 3.3.3

    What Is An Ion?

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    This section discusses the concept of ions in compounds formed from metals...

13. 3.4

    Writing Chemical Formulae

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    This section introduces the rules for writing chemical formulae of compounds...

14. 3.4.1

    Formulae Of Simple Compounds

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    This section explains the concept of binary compounds, their valency, and...

15. 3.5

    Molecular Mass

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    Molecular Mass refers to the sum of the atomic masses of all atoms in a...

16. 3.5.1

    Molecular Mass

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    This section introduces the concept of molecular mass, explaining how it can...

17. 3.5.2

    Formula Unit Mass

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    This section introduces the concept of formula unit mass, explaining how to...