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scheme-of-work — Chemistry (Redox Reactions)

ChemistryForm 2SchemesCBC

Topics: Redox Reactions, Acids, Bases and Salts

Subtopics: Oxidation and Reduction, Composition of Acids, Bases and Salts, Acids, Bases, Oxides, Acid-Base Indicators, Salts, Qualitative Analysis

MINISTRY OF EDUCATION

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KASEMPA DAY SECONDARY SCHOOL, DEPARTMENT: NATURAL SCIENCE

SCHEME OF WORK

SUBJECT: Chemistry, GRADE/CLASS: Form 2, TERM: 3, YEAR: 2026, NAME OF TEACHER: MR MASUMBA DAVIES

WEEKTOPICSUBTOPICSPECIFIC COMPETENCESCOPE OF THE LESSONSLEARNING ACTIVITYEXPECTED STANDARDT/L RESOURCESMETHODS/STRATEGIESREF
Week 1
07/09/2026
1. Redox Reactions1.1. Oxidation and Reduction1.1.1. Interpret redox reactionsIntroduction to redox reactions, defining oxidation and reduction in terms of oxygen/hydrogen exchange, electron transfer, and oxidation state changes, and examining redox reactions.Analysing oxidation and reduction in terms of: (a) Oxygen/hydrogen exchange, (b) Electron transfer, (c) Oxidation state changes; Examining a redox reaction (reaction involving both oxidation and reduction); Identifying the characteristics of oxidising and reducing agentsAbility to interpret and analyse redox reactionsTextbooks, charts, laboratory apparatus for demonstrationsExplanations, discussions, demonstrationsSyllabus, Textbook
Week 2
14/09/2026
1. Redox Reactions1.1. Oxidation and Reduction1.1.1. Interpret redox reactionsPractical identification of oxidising and reducing agents, determining oxidation numbers, deducing redox reactions, and describing non-redox reactions.Oxidising agents (identified using potassium iodide solution as a reducing agent in the presence of starch or acidified potassium iodide paper); Reducing agents (identified using acidified potassium dichromate or potassium permanganate as oxidizing agents and observe colour changes only); Determining oxidation numbers of elements with variable oxidation states; Deducing a redox reaction using oxidation numbers; Describing a non-redox reaction (reaction in which there is neither oxidation nor reduction involved)Ability to interpret and analyse redox reactionsPotassium iodide solution, starch, acidified potassium iodide paper, acidified potassium dichromate, potassium permanganate, laboratory apparatus, textbooksPractical work, problem-solving, discussionsSyllabus, Textbook
Week 3
21/09/2026
2. Acids, Bases and Salts2.1. Composition of Acids, Bases and Salts; 2.2. Acids2.1.1. Analyse the composition of acids, bases and salts; 2.2.1. Demonstrate understanding of acids; 2.2.2. Analyse the properties of acidsUnderstanding the chemical composition of acids, bases, and salts, classifying acids by nature and strength, determining basicity, and exploring their physical, chemical properties, uses, and environmental impact.Investigating acids, bases, salts (refer to chemical compositions of acids, bases and salts); Classifying acids in terms of: (a) Nature (Organic and inorganic), (b) Strength (Strong and weak); Describing basicity of an acid (number of ionisable hydrogen(s) present in a molecule of an acid such as monobasic, dibasic and tribasic); Demonstrating the physical and chemical properties of acids: (a) Physical properties (sour taste, pH less than 7, they are electrolytes, corrosive), (b) Chemical properties (reactions with metals, bases, carbonates/bicarbonates and effects on indicators); Exploring uses of acids and their environmental impactUnderstanding of composition of acids, bases and salts; Understanding of acid classification and properties; Analysis of acid properties and applicationsVarious acids (e.g., HCl, H2SO4, CH3COOH), metals, bases, carbonates, indicators, pH paper/meter, textbooks, chartsPractical work, demonstrations, group discussions, researchSyllabus, Textbook
Week 4
28/09/2026
2. Acids, Bases and Salts2.3. Bases2.3.1. Demonstrate understanding of bases; 2.3.2. Analyse the properties of basesClassifying bases by solubility and strength, determining acidity, and exploring their physical, chemical properties, uses, and environmental impact.Classifying bases in terms of solubility and further classifying the soluble ones (alkalis) as strong and weak; Describing acidicity of a base as the number of hydroxides present in a formula such as monoacidic, diacidic and triacidic; Demonstrating the physical and chemical properties of bases: (a) Physical properties (taste, pH greater than 7, texture, electrolytes (alkalis), (b) Chemical properties (reactions with acids and ammonium salts, effects on indicators); Exploring the uses of bases and their environmental impactUnderstanding of base classification and properties; Analysis of base properties and applicationsVarious bases (e.g., NaOH, Ca(OH)2, NH3), acids, ammonium salts, indicators, pH paper/meter, textbooks, chartsPractical work, demonstrations, group discussions, researchSyllabus, Textbook
Week 5
05/10/2026
2. Acids, Bases and Salts2.4. Oxides; 2.5. Acid-Base Indicators2.4.1. Classify oxides; 2.5.1. Apply acid-base indicators to determine the acidity, alkalinity and neutrality of a substanceUnderstanding and classifying different types of oxides, their uses, and the application of various acid-base indicators to determine pH.Describing oxides; Analysing types of oxides (refer to Acidic oxides, Basic oxides, Amphoteric oxides, Neutral oxides); Exploring the uses of oxides; Describing acid-base indicators; Investigating types of acid-base indicators; Determining the acidity, alkalinity and neutrality of a substance using pH meter, litmus paper/solution, methyl orange, phenolphthalein, universal indicator paper/solution; Making acid-base indicators from locally available resourcesAbility to classify and understand oxides; Application of indicators for pH determinationSamples of different oxides, various acid-base indicators (litmus, methyl orange, phenolphthalein, universal indicator), pH meter, locally available resources for making indicators, test solutionsDemonstrations, practical work, observation, experimentation, project-based learningSyllabus, Textbook
Week 6
12/10/2026
2. Acids, Bases and Salts2.6. Salts2.6.1. Prepare and obtain saltsClassification of salts and practical methods for preparing both soluble and insoluble salts.Classifying salts (normal salts, acid salts and basic salts; hydrated and anhydrous salts); Preparing soluble salts using appropriate methods with suitable reactants (refer to reaction of acid with alkali (titration); reaction of acid with insoluble base, reaction of acid with metal carbonate, reaction of acid with a reactive metal); Preparing insoluble salts by precipitation method (silver chloride, lead (II) sulphate...)Ability to prepare and classify saltsVarious acids, alkalis, insoluble bases, metal carbonates, reactive metals, soluble salt solutions (e.g., silver nitrate, lead(II) nitrate), laboratory apparatusPractical work, demonstrations, group experimentsSyllabus, Textbook
Week 7
19/10/2026
MID-TERM TESTAssess the studentsAssess learners' mastery of all topics covered up to this weekCumulative review and written assessment of all topics covered in the term so farWritten test administration; Past papers; Test paper; StationeryLearners demonstrate mastery through written responseTest paper; Answer sheets; StationeryIndividual written assessment; Self-assessmentPast papers; Syllabus
Week 8
26/10/2026
2. Acids, Bases and Salts2.6. Salts2.6.1. Prepare and obtain saltsMethods of obtaining salts from solutions, understanding water of crystallization, solubility, and atmospheric behaviour of salts.Obtaining salts from solutions (by evaporation and crystallization); Describing water of crystallization; Discussing the importance of water of crystallization to hydrated salts; Determining the solubility of salts in water (soluble and insoluble salts); Investigating the behaviour of salts with reference to the atmosphere as hygroscopic, efflorescent, deliquescentAbility to prepare and classify saltsSalt solutions, evaporating dishes, Bunsen burner, filter paper, various hydrated and anhydrous salts, hygroscopic/efflorescent/deliquescent substances, textbooksPractical work, observation, experimentation, discussionsSyllabus, Textbook
Week 9
02/11/2026
2. Acids, Bases and Salts2.6. Salts2.6.2. Analyse the use of salts in real-world scenariosExploring the industrial and practical applications of salts and designing solutions for real-world problems using salts.Investigating on the various uses of salts in different industries, such as: food preservation, medicine, agriculture....; Analysing the role of salts in products or processes in industries; Designing a solution using salt to address a real-world problem, such as preserving food, purifying water....Analysis and application of salts in real-world contextsCase studies, articles, internet access (if available), examples of salt-based products, project materialsResearch, group discussions, problem-based learning, project workSyllabus, Textbook
Week 10
09/11/2026
2. Acids, Bases and Salts2.7. Qualitative Analysis2.7.1. Investigate the chemical composition of salts in terms of cations and anions presentPractical qualitative analysis to identify common cations, anions, and gases.Analysing and identifying cations and anions in their aqueous solutions: (a) Cations being aluminium (Al 3+), ammonium (NH4 +), calcium (Ca 2+), copper (II) (Cu 2+), iron (II) (Fe 2+), iron (III) (Fe 3+) and zinc (Zn 2+) using aqueous sodium hydroxide and aqueous ammonia. (b) Anions being carbonate (CO3 2-), chloride (Cl -), iodide (I -), nitrate (NO3 -), sulphate (SO4 2-); Carrying out chemical test to identify gases such as ammonia (NH3), carbon dioxide (CO2), chlorine (Cl2), hydrogen (H2), oxygen (O2), sulphur dioxide (SO2) water vapour (H2O)Ability to analyse and identify chemical compositionAqueous sodium hydroxide, aqueous ammonia, solutions containing various cations and anions, reagents for gas tests (e.g., limewater, litmus paper), laboratory apparatusPractical work, experimentation, observation, systematic analysisSyllabus, Textbook
Week 11
16/11/2026
2. Acids, Bases and Salts2.7. Qualitative Analysis2.7.2. Apply analysis of salts in creation of economical productsApplying the principles of salt analysis to develop economical products.Exploring the use of analysis of salts in the creation of economical products; Designing a new product that uses salts, (new type of food preservative, a salt-based fertiliser...)Application of salt analysis in product developmentCase studies of industrial applications, raw materials for product design (conceptual), research materialsResearch, brainstorming, design thinking, project workSyllabus, Textbook
Week 12
23/11/2026
REVISIONAll topics coveredReinforce understanding of all topicsComprehensive review of all topics and subtopics covered in the term.Reviewing notes; Solving past paper questions; Group discussions on challenging concepts; Teacher-led Q&A sessionLearners consolidate their knowledge and address areas of weaknessTextbooks, notes, past examination papers, revision guidesCollaborative learning, individual study, guided revisionSyllabus, Past papers, Textbook
Week 13
30/11/2026
END-OF-TERM TESTAssess the studentsAssess learners' mastery of all topics covered up to this weekCumulative review and written assessment of all topics covered in the term so farWritten test administration; Past papers; Test paper; StationeryLearners demonstrate mastery through written responseTest paper; Answer sheets; StationeryIndividual written assessment; Self-assessmentPast papers; Syllabus

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