Module 1: Properties and Structure of Matter

1.1 Properties of Matter
1.2 Atomic Structure and Atomic Mass
1.3 Periodicity
1.4 Bonding
Module 2: Introduction to Quantitative Chemistry

2.1 Chemical Reactions and Stoichiometry
2.2 Mole Concept
2.3 Concentration and Molarity
2.4 Gas Laws
Module 3: Reactive Chemistry

3.1 Chemical Reactions
3.2 Predicting Reactions of Metals
3.3 Rates of Reactions
Module 4: Drivers of Reactions

4.1 Energy Changes in Chemical Reactions
4.2 Enthalpy and Hess's Law
4.3 Entropy and Gibbs Free Energy
Module 5: Equilibrium and Acid Reactions

5.1 Static and Dynamic Equilibrium

5 Topics
5.2 Factors that Affect Equilibrium

2 Topics
1. Le Chatelier's Principle
2. Factors Affecting Equilibrium
5.3 Calculating the Equilibrium Constant

2 Topics
1. The Equilibrium Constant Expression
2. Calculating the Equilibrium Constant
5.4 Solution Equilibria
Module 6: Acid/Base Reactions

6.1 Properties of Acids and Bases

7 Topics
6.2 Using Brønsted–Lowry Theory

2 Topics
1. Introduction to pH
2. Introduction to pOH
6.3 Quantitative Analysis

1 Topic
1. Chemical Buffers
Module 7: Organic Chemistry

7.1 Nomenclature

2 Topics
1. Steps for Naming Organic Substances
2. Isomerism
7.2 Hydrocarbons

2 Topics
1. Implications of Obtaining and Using Hydrocarbons
2. Safe Handling and Disposal of Hydrocarbons
7.3 Products of Reactions Involving Hydrocarbons
7.4 Alcohols

1 Topic
1. Comparison of Petro-fuels with Organic Fuels
7.5 Reactions of Organic Acids and Bases
7.6 Polymers

2 Topics
1. Examples of Addition Polymers
2. Addition Polymers
Module 8: Applying Chemical Ideas

8.1 Analysis of Inorganic Substances

3 Topics
8.2 Analysis of Organic Substances
8.3 Chemical Synthesis and Design
Working Scientifically

Working Scientifically Overview

1 Topic
1. Analysing Data and Information

HSC Chemistry 5.1 Static and Dynamic Equilibrium Overview of Static and Dynamic Equilibrium

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Lesson 15, Topic 1

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Overview of Static and Dynamic Equilibrium

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In chemical systems, the particles are always in motion at a fixed temperature.
In a static chemical equilibrium, both forward and backward reactions have come to a halt as no changes occur at the molecular level.
In a dynamic chemical equilibrium, the forward and reverse reactions occur at the same rate.
In chemical systems, reactions may occur in the forward and reverse directions. They are said to be reversible.
The attainment of equilibrium depends on whether the system is open or closed.
A closed system is a system in which components cannot escape. Chemical reactions are therefore reversible in closed systems.