Chapter 3: Atoms and Molecules

Topic 1: Law of conservation of mass

Topic 2: Law of constant proportions

Topic 3: What is an atom?

Topic 4: The modern day symbol of atoms of different elements

Topic 5: Atomic mass

Topic 6: What is a molecule?

Topic 7: Molecules of elements

Topic 8: Molecules of compounds

Topic 9: What is an ion?

Topic 10: Writing chemical formulae of compounds

Topic 11: Molecular mass

Topic 12: Calculate the molar mass of calcium nitrate Ca(NO3)2

Topic 13: Mole concept

Multiple choice questions

Question and answers

Note book

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