CHEMISTRY GRADE 9
This is Grade 9 Chemistry tutorial prepared based on Ethiopian Curriculum.
How to Use the Online Platform
Chemistry Grade 9 Subject Introduction
The Atomic Theory
The Discovery of Electron
Quiz 1
Radioactivity and Discovery of Nucleus
Atomic Number and Mass Number
Quiz 2
Isotopes and Average Atomic Mass
Worked Example & Practice Exercise
Quiz 1
Atomic Models
Quiz 2
The Quantum Mechanical Model
Practice on Quantum Mechanical Model
Aufbau's Principle and Diagonal Rule
Aufbau's Principle and Diagonal Rule
Noble Gas as core Electron-Configuration
Revision and Solved Problems
Review Questions (MCQ)
Solved Problems on How To Determine The Average Atomic mass of Isotopes
Practice Questions on Electron Configuration
Periodic Classification of Elements
Mendeleev's Periodic Law
The Modern Periodic Law
Periods
Groups
How to Identify Periods and Groups
Solved Problems on Identifying Groups and Periods from Electronic Configuration
Periodic Classification of Elements on the Periodic Table
Classification of Elements and Worked Example
Periodic Properties In The Periodic Table
Periodic Properties Down a Group
Continued From Periodic Properties Down a Group
Exercise
Advantage of Periodic Classification
Periodic Properties Across a Period
Example on Periodic Properties
Chemical bonding
Continued From Chemical Bonding
Types of Chemical bonding
Continued From Types of Chemical Bonding and Exercise
Ionic Compound
Properties of Ionic Compound
Ionic Compound
Practice Exercise
Covalent Bonding
Types of Covalent Bonding
Polarity In Covalent Bonds
Exercise
Exercise
Metallic Bonding
Physical Properties of Metals
Exercise
Intermolecular Forces
Exercise
Summary
Continued From The Summary
Review Questions
Continued From Review Question
Continued From Review Question
Continued From Review Question
Continued From Review Question
Continued From Review Question
Introduction to Chemical Reaction and Stoichiometry
Chemical Reaction
Practice Question
Chemical Reaction
Chemical Equation
Balancing Chemical Equation
Example on Balancing Chemical Equation
Exercise
Balancing Chemical Equation (The LCM method)
Continued From The LCM method
Exercise
Continued From Exercise
The Algebraic Method
Exercise
Energy change and Energy diagram
Exercise
Stoichiometry of Chemical Reaction
Fundamentals of Chemical Reaction
Types of Chemical Reaction
Synthesis and Decompostion Reaction
Continued from Decomposition Reaction and Single Displacement Reaction
Double Displacement and Combustion Reaction
Stoichiometry
Continued From Stoichiometry and mass-mass Relationship
Example on mass-mass Relationship
Continued From Example on mass-mass Relationship
The Mole Ratio Method and Examples
Worked Example
Limiting and Excess Reactant
Worked Example
Continued From Worked Example
Theoretical, Actual and Percentage Yields
Worked Example
Oxidation and Reduction Reaction
Continued From Oxidation and Reduction and Rules for Assigning Oxidation Numbers
Rules for Assigning Oxidation Numbers
Worked Example
Oxidizing and Reducing Agent
Worked Example
Test for an Oxidizing Agent
Non-redox Reaction and Rate of Chemical Reaction and Chemical Equilibrium
Rate of Chemical Reaction and Chemical Equilibrium
Pre-Condition for a Chemical Reaction
Factors Affecting Rate of Chemical Reaction
Continued From Factors Affecting Rate of Chemical Reaction
Continued From Factors Affecting Rate of Chemical Reaction
Activation Energy
Changing the Rate of Chemical Reaction
Effect of Surface Area and Concentration, and Gas Reaction
Effect of Temperature, Catalyst and more about Rate Graphs
Chemical Equilibrium
Further on Chemical Equilibrium
Phase Change Equilibrium, Solution Equilibrium and the Equilibrium Constant
The Range of Equilibrium Constants and The Reaction Quotient Q
Continued From the Reaction Quotient Q and Examples
Continued From the Reaction Quotient Q Examples
Factors Affecting Chemical Equilibrium
Continued From Factors Affecting Chemical Equilibrium
CHEM G9 S6 L1
CHEM G9 S6 L1
CHEM G9 S25 L1
CHEM G9 S26 L1
CHEM G9 S27 L1
CHEM G9 S28 L1
CHEM G9 S29L1
CHEM G9 S30 L1
CHEM G9 S31 L1
CHEM G9 S32 L1