7. Atoms, molecules, and Chemical reactions
- 7.1 Introduction of the lesson and Lab Activity Click here 14 min
- 7.2 Law of conservation of mass, Law of constant proportion and Dalton’s Atomic theory Click here 0 min
- 7.3 Atoms and Molecules, why do we name elements?, symbols of elements and Activity 1 Click here 0 min
- 7.4 Some unusual symbols, Activity 2, Elements with more than one atom with their molecules, Atomicity and valency Click here 0 min
- 7.5 What is ion? Atomic mass, and molecules of compounds Click here 15 min
- 7.6 Chemical formulae of compounds, Molecular mass, Mole concept and Molar mass Click here 0 min
- 7.7 Chemical reaction and types of chemical reaction, Chemical combination Activity 3 and Decomposition reaction Activity 4 Click here 0 min
- 7.8 Activity 5 , Activity 6 and Activity 7 Click here 0 min
- 7.9 Displacement reaction Activity 8 Activity 9, Double displacement reaction Activity 10 Click here 0 min
- 7.10 Oxidation and Reduction, Activity 11, corrosion, some more effects of oxidation on everyday life and Rancidity 121 -124 Dharmendhar 9PE7.10 , Click here 0 min
7. Atoms, molecules, and Chemical reactions
- 7.1 Introduction of the lesson and Lab Activity Preview 14 min
- 7.2 Law of conservation of mass, Law of constant proportion and Dalton’s Atomic theory Preview 0 min
- 7.3 Atoms and Molecules, why do we name elements?, symbols of elements and Activity 1 Preview 0 min
- 7.4 Some unusual symbols, Activity 2, Elements with more than one atom with their molecules, Atomicity and valency Preview 0 min
- 7.5 What is ion? Atomic mass, and molecules of compounds Preview 15 min
- 7.6 Chemical formulae of compounds, Molecular mass, Mole concept and Molar mass Preview 0 min
- 7.7 Chemical reaction and types of chemical reaction, Chemical combination Activity 3 and Decomposition reaction Activity 4 Preview 0 min
- 7.8 Activity 5 , Activity 6 and Activity 7 Preview 0 min
- 7.9 Displacement reaction Activity 8 Activity 9, Double displacement reaction Activity 10 Preview 0 min
- 7.10 Oxidation and Reduction, Activity 11, corrosion, some more effects of oxidation on everyday life and Rancidity 121 -124 Dharmendhar 9PE7.10 , Preview 0 min