Lesson Notes By Weeks and Term v4 - SHS 2
EQUILIBRIA
Download the Lessonotes Mobile Ghana app for faster lesson access on Android and iPhone.
EQUILIBRIA
Download the Lessonotes Mobile Ghana app for faster lesson access on Android and iPhone.
Subject: Chemistry
Class: SHS 2
Term: 2nd Term
Week: 4
Grade code: 2.1.2.LI.4
Strand code: 1
Sub-strand code: 2
Content standard code: 2.1.2.CS.2
Indicator code: 2.1.2.LI.4
Theme: PHYSICAL CHEMISTRY
Subtheme: EQUILIBRIA
This page supports the lesson note with a companion video and a short classroom-ready summary.
For class groups and homework, share this lesson page so learners also get the summary, objectives, and full lesson context.
This lesson introduces the concept of salts, a class of compounds we encounter daily. While we often think of the common salt (table salt or *nkyene*) we use for cooking, the world of salts is vast and vital. Salts are crucial in industries, agriculture (as fertilizers for our cocoa and maize farms), medicine, and even in our own bodies. We will explore what defines a salt chemically and learn to classify them into various groups based on their composition and behaviour. This knowledge is foundational and connects to the broader topic of Equilibria, as the behaviour of certain salts in water is a classic example of an equilibrium reaction in action.
A. What is a Salt?
A salt is an ionic compound formed when the replaceable hydrogen ion(s) of an acid are partially or completely replaced by a metal ion or an ammonium ion (NH₄⁺).
The most common way to form a salt is through a neutralization reaction, where an acid reacts with a base.
*General Equation:* Acid + Base → Salt + Water