Atoms and Molecules

This topic covers concepts, such as Ancient Ideas of Atom, Existence of Atoms, Model by Ancient Indian Philosophers, Model by Ancient Greek Philosophers, Laws of Chemical Combination, History of Laws of Chemical Combination, Law of Conservation of Mass, Reactants, Products, Law of Constant Proportions, Idea behind the Law of Constant Proportions, Dalton's Atomic Theory & Postulates of Dalton's Atomic Theory etc.

This topic covers concepts, such as Atoms and Molecules, Atom, Size of Atom, Significance of Atoms, Symbols for Elements Proposed by Dalton, Naming of Elements, Element Names Based on Place of Discovery, Element Names Based on Specific Colours, IUPAC Name and Symbols of Some Elements, Elements Names Derived from Other Languages, Symbols for few Important Elements, Atomic Mass, Dalton's Contribution to Atomic Mass, Need of Relative Atomic Masses, Atomic Mass Unit, Atomic Masses of Some Elements, Oxygen as Standard for Relative Atomic Masses, Carbon as Standard for Relative Atomic Masses & Existence of Atom as Molecules or Ions etc.

This topic covers concepts, such as Molecule, Molecules of Elements, Molecules of Noble Gases, Molecules of Non-Metals, Atomicity, Molecules of Compounds, Molecule of Ammonia, Molecule of Carbon Dioxide & Ratio by Mass in Compounds etc.

This topic covers concepts, such as Ions, Cation, Anion, Naming of Common Ions, Symbols Used for Common Ions & Ionic Compounds etc.

This topic covers concepts, such as Chemical Formulae of Compounds, Valency of Element, Valency Used for Some Common Ions, Rules for Writing Chemical Formulae, Writing Chemical Formula of Hydrogen Chloride, Writing Formula of Hydrogen Sulphide, Writing Formula of Magnesium Chloride, Writing Formula of Aluminium Oxide, Writing Formula of Calcium Oxide, Writing Formula of Sodium Nitrate, Writing Chemical Formula of Calcium Hydroxide, Writing Chemical Formula of Sodium Carbonate & Writing Chemical Formula of Ammonium Sulphate etc.

This topic covers concepts, such as Molecular Mass, Calculation of Molecular Mass of Compounds, Formula Unit Mass, Calculation of Formula Unit Mass of Sodium Chloride, Mole Concept, Avogadro's Number, Gram Molecular Mass, Relation between Mole and Relative Mass, Relation between Mole and Number of Particles, Calculation of Number of Moles from Given Mass, Calculation of Number of Moles in Given Number of Atoms, Calculation of Mass from Number of Particles, Calculation of Mass from Number of Moles, Calculation of Mass from Number of Atoms, Calculation of Mass from Number of Molecules, Calculation of Number of Particles from Mass, Calculation of Number of Particles from given Mass of Atoms, Calculation of Number of Particles from given Mass of Molecules, Stoichiometry and Stoichiometric Calculations, Calculations Involving Mole-mole Relation, Calculations Involving Mole-weight Relation, Calculations Involving Mole-volume Relation, Calculations Involving Weight-weight Relation, Calculations Involving Weight-volume Relation, Limiting Reagent & Calculation of Number of Moles Using a Limiting Reagent etc.

This topic covers concepts, such as Gas Laws, Boyle's Law, Graphs Based on Boyle's Law, Charles' Law, Graphs Based on Charles' Law, Absolute Zero Temperature, Gay-Lussac's Law, Graphs Based on Gay-Lussac's Law, Avogadro's Law, Ideal Gas, Combined Gas law, Ideal Gas Equation, Universal Gas Constant, Calculation of Universal Gas Constant, Density and Molar Mass Relation & Average Speed etc.