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| WK | LSN | TOPIC | SUB-TOPIC | OBJECTIVES | T/L ACTIVITIES | T/L AIDS | REFERENCE | REMARKS |
|---|---|---|---|---|---|---|---|---|
| 1 |
REVISION OF END TERM EXAM |
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| 2 | 1 |
ELECTROCHEMISTRY
|
Redox Reactions and Oxidation Numbers
|
By the end of the
lesson, the learner
should be able to:
Define redox reactions in terms of electron transfer - State rules for assigning oxidation numbers - Calculate oxidation numbers in compounds - Identify oxidation and reduction processes |
In groups, learners are guided to:
Q/A: Review previous knowledge - Experiment 4.1: Iron filings + copper(II) sulphate - Experiment 4.2: Iron(II) ions + hydrogen peroxide - Discussion on oxidation number rules with examples |
Iron filings, 1M CuSO₄, 1M FeSO₄, 2M NaOH, 20V H₂O₂, test tubes
|
KLB Secondary Chemistry Form 4, Pages 108-116
|
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| 2 | 2 |
ELECTROCHEMISTRY
|
Oxidation Numbers in Naming and Redox Identification
|
By the end of the
lesson, the learner
should be able to:
Apply oxidation numbers to systematic naming - Use oxidation numbers to identify redox reactions - Distinguish oxidizing and reducing agents - Track electron movement in reactions |
In groups, learners are guided to:
Worked examples: Calculate oxidation numbers in complex compounds - Practice IUPAC naming - Exercise 4.1: Identify redox reactions using oxidation numbers - Name compounds with variable oxidation states |
Compound charts, calculators, student books, practice exercises
|
KLB Secondary Chemistry Form 4, Pages 109-116
|
|
| 2 | 3 |
ELECTROCHEMISTRY
|
Oxidation Numbers in Naming and Redox Identification
|
By the end of the
lesson, the learner
should be able to:
Apply oxidation numbers to systematic naming - Use oxidation numbers to identify redox reactions - Distinguish oxidizing and reducing agents - Track electron movement in reactions |
In groups, learners are guided to:
Worked examples: Calculate oxidation numbers in complex compounds - Practice IUPAC naming - Exercise 4.1: Identify redox reactions using oxidation numbers - Name compounds with variable oxidation states |
Compound charts, calculators, student books, practice exercises
|
KLB Secondary Chemistry Form 4, Pages 109-116
|
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| 2 | 4-5 |
ELECTROCHEMISTRY
|
Displacement Reactions - Metals and Halogens
Electrochemical Cells and Cell Diagrams |
By the end of the
lesson, the learner
should be able to:
Explain displacement reactions using electron transfer - Arrange metals and halogens by reactivity - Predict displacement reactions - Compare oxidizing powers of halogens Define electrode potential and EMF - Describe electrochemical cell components - Draw cell diagrams using correct notation - Explain electron flow and salt bridge function |
In groups, learners are guided to:
Experiment 4.3: Metal displacement reactions - systematic testing - Experiment 4.4: Halogen displacement (FUME CUPBOARD) - Tabulate results and arrange by reactivity Experiment 4.5: Set up Zn/Cu cell and other metal combinations - Measure EMF values - Practice writing cell notation - Learn conventional representation methods |
Various metals (Ca, Mg, Zn, Fe, Pb, Cu), metal salt solutions, halogens (Cl₂, Br₂, I₂), halide solutions
Metal electrodes, 1M metal salt solutions, voltmeters, salt bridges, connecting wires |
KLB Secondary Chemistry Form 4, Pages 116-122
KLB Secondary Chemistry Form 4, Pages 123-128 |
|
| 3 | 1 |
ELECTROCHEMISTRY
|
Standard Electrode Potentials
|
By the end of the
lesson, the learner
should be able to:
Define standard electrode potential - Describe standard hydrogen electrode - List standard conditions - Use electrode potential tables effectively |
In groups, learners are guided to:
Study standard hydrogen electrode setup - Discussion of standard conditions (25°C, 1M, 1 atm) - Introduction to electrode potential series - Practice reading potential tables |
Standard electrode potential table, diagrams, charts showing standard conditions
|
KLB Secondary Chemistry Form 4, Pages 129-133
|
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| 3 | 2 |
ELECTROCHEMISTRY
|
Standard Electrode Potentials
|
By the end of the
lesson, the learner
should be able to:
Define standard electrode potential - Describe standard hydrogen electrode - List standard conditions - Use electrode potential tables effectively |
In groups, learners are guided to:
Study standard hydrogen electrode setup - Discussion of standard conditions (25°C, 1M, 1 atm) - Introduction to electrode potential series - Practice reading potential tables |
Standard electrode potential table, diagrams, charts showing standard conditions
|
KLB Secondary Chemistry Form 4, Pages 129-133
|
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| 3 | 3 |
ELECTROCHEMISTRY
|
Calculating Cell EMF and Predicting Reactions
|
By the end of the
lesson, the learner
should be able to:
Calculate EMF using standard electrode potentials - Predict reaction spontaneity using EMF - Solve numerical problems on cell EMF - Apply EMF calculations practically |
In groups, learners are guided to:
Worked examples: Calculate EMF for various cells - Practice EMF calculations - Exercise 4.2 & 4.3: Cell EMF and reaction feasibility problems - Distinguish spontaneous from non-spontaneous reactions |
Calculators, electrode potential data, worked examples, practice problems
|
KLB Secondary Chemistry Form 4, Pages 133-137
|
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| 3 | 4-5 |
ELECTROCHEMISTRY
|
Types of Electrochemical Cells
Electrolysis of Aqueous Solutions I |
By the end of the
lesson, the learner
should be able to:
Describe functioning of primary and secondary cells - Compare different cell types - Explain fuel cell operation - State applications of electrochemical cells Define electrolysis and preferential discharge - Investigate electrolysis of dilute sodium chloride - Compare dilute vs concentrated solution effects - Test products formed |
In groups, learners are guided to:
Study dry cell (Le Clanche) and lead-acid accumulator - Hydrogen-oxygen fuel cell operation - Compare cell types and applications - Discussion on advantages/disadvantages Experiment 4.6(a): Electrolysis of dilute NaCl - Experiment 4.6(b): Electrolysis of brine - Test gases evolved - Compare results and explain differences |
Cell diagrams, sample batteries, charts showing cell applications
Dilute and concentrated NaCl solutions, carbon electrodes, gas collection tubes, test equipment |
KLB Secondary Chemistry Form 4, Pages 138-141
KLB Secondary Chemistry Form 4, Pages 141-146 |
|
| 4-5 |
Exam 1 |
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| 5 | 2 |
ELECTROCHEMISTRY
|
Electrolysis of Aqueous Solutions II
|
By the end of the
lesson, the learner
should be able to:
Analyze electrolysis of dilute sulphuric acid - Investigate electrolysis of metal salt solutions - Measure gas volumes and ratios - Apply theoretical predictions |
In groups, learners are guided to:
Experiment 4.7: Electrolysis of dilute H₂SO₄ using U-tube - Experiment 4.8: Electrolysis of MgSO₄ solution - Collect and measure gases - Analyze volume ratios |
U-tube apparatus, 2M H₂SO₄, 0.5M MgSO₄, platinum/carbon electrodes, gas syringes
|
KLB Secondary Chemistry Form 4, Pages 146-148
|
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| 5 | 3 |
ELECTROCHEMISTRY
|
Electrolysis of Aqueous Solutions II
|
By the end of the
lesson, the learner
should be able to:
Analyze electrolysis of dilute sulphuric acid - Investigate electrolysis of metal salt solutions - Measure gas volumes and ratios - Apply theoretical predictions |
In groups, learners are guided to:
Experiment 4.7: Electrolysis of dilute H₂SO₄ using U-tube - Experiment 4.8: Electrolysis of MgSO₄ solution - Collect and measure gases - Analyze volume ratios |
U-tube apparatus, 2M H₂SO₄, 0.5M MgSO₄, platinum/carbon electrodes, gas syringes
|
KLB Secondary Chemistry Form 4, Pages 146-148
|
|
| 5 | 4-5 |
ELECTROCHEMISTRY
|
Effect of Electrode Material on Electrolysis
|
By the end of the
lesson, the learner
should be able to:
Compare inert vs reactive electrodes - Investigate electrode dissolution - Explain electrode selection importance - Analyze copper purification process |
In groups, learners are guided to:
Experiment 4.9: Electrolysis of CuSO₄ with carbon vs copper electrodes - Weigh electrodes before/after - Observe color changes - Discussion on electrode effects |
Copper and carbon electrodes, 3M CuSO₄ solution, accurate balance, beakers, connecting wires
|
KLB Secondary Chemistry Form 4, Pages 141-148
|
|
| 6 | 1 |
ELECTROCHEMISTRY
|
Factors Affecting Electrolysis
|
By the end of the
lesson, the learner
should be able to:
Identify factors affecting preferential discharge - Explain electrochemical series influence - Discuss concentration and electrode effects - Predict electrolysis products |
In groups, learners are guided to:
Review electrochemical series and discharge order - Analysis of concentration effects on product formation - Summary of all factors affecting electrolysis - Practice prediction problems |
Electrochemical series chart, summary tables, practice exercises, student books
|
KLB Secondary Chemistry Form 4, Pages 153-155
|
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| 6 | 2 |
ELECTROCHEMISTRY
|
Factors Affecting Electrolysis
|
By the end of the
lesson, the learner
should be able to:
Identify factors affecting preferential discharge - Explain electrochemical series influence - Discuss concentration and electrode effects - Predict electrolysis products |
In groups, learners are guided to:
Review electrochemical series and discharge order - Analysis of concentration effects on product formation - Summary of all factors affecting electrolysis - Practice prediction problems |
Electrochemical series chart, summary tables, practice exercises, student books
|
KLB Secondary Chemistry Form 4, Pages 153-155
|
|
| 6 | 3 |
ELECTROCHEMISTRY
|
Factors Affecting Electrolysis
|
By the end of the
lesson, the learner
should be able to:
Identify factors affecting preferential discharge - Explain electrochemical series influence - Discuss concentration and electrode effects - Predict electrolysis products |
In groups, learners are guided to:
Review electrochemical series and discharge order - Analysis of concentration effects on product formation - Summary of all factors affecting electrolysis - Practice prediction problems |
Electrochemical series chart, summary tables, practice exercises, student books
|
KLB Secondary Chemistry Form 4, Pages 153-155
|
|
| 6 | 4-5 |
ELECTROCHEMISTRY
|
Applications of Electrolysis I
|
By the end of the
lesson, the learner
should be able to:
Describe electrolytic extraction of reactive metals - Explain electroplating process - Apply electrolysis principles to metal coating - Design electroplating setup |
In groups, learners are guided to:
Discussion: Extraction of Na, Mg, Al by electrolysis - Practical: Electroplate iron nail with copper - Calculate plating requirements - Industrial applications |
Iron nails, copper electrodes, CuSO₄ solution, power supply, industrial process diagrams
|
KLB Secondary Chemistry Form 4, Pages 155-157
|
|
| 7 | 1 |
ELECTROCHEMISTRY
|
Applications of Electrolysis II
|
By the end of the
lesson, the learner
should be able to:
Describe manufacture of NaOH and Cl₂ from brine - Explain mercury cell operation - Analyze industrial electrolysis processes - Discuss environmental considerations |
In groups, learners are guided to:
Study mercury cell for NaOH production - Flow chart analysis of industrial processes - Discussion on applications and environmental impact - Purification of metals |
Flow charts, mercury cell diagrams, environmental impact data, industrial case studies
|
KLB Secondary Chemistry Form 4, Pages 155-157
|
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| 7 | 2 |
ELECTROCHEMISTRY
|
Applications of Electrolysis II
|
By the end of the
lesson, the learner
should be able to:
Describe manufacture of NaOH and Cl₂ from brine - Explain mercury cell operation - Analyze industrial electrolysis processes - Discuss environmental considerations |
In groups, learners are guided to:
Study mercury cell for NaOH production - Flow chart analysis of industrial processes - Discussion on applications and environmental impact - Purification of metals |
Flow charts, mercury cell diagrams, environmental impact data, industrial case studies
|
KLB Secondary Chemistry Form 4, Pages 155-157
|
|
| 7 | 3 |
ELECTROCHEMISTRY
|
Applications of Electrolysis II
|
By the end of the
lesson, the learner
should be able to:
Describe manufacture of NaOH and Cl₂ from brine - Explain mercury cell operation - Analyze industrial electrolysis processes - Discuss environmental considerations |
In groups, learners are guided to:
Study mercury cell for NaOH production - Flow chart analysis of industrial processes - Discussion on applications and environmental impact - Purification of metals |
Flow charts, mercury cell diagrams, environmental impact data, industrial case studies
|
KLB Secondary Chemistry Form 4, Pages 155-157
|
|
| 7 | 4-5 |
ELECTROCHEMISTRY
|
Applications of Electrolysis II
Faraday's Laws and Quantitative Electrolysis |
By the end of the
lesson, the learner
should be able to:
Describe manufacture of NaOH and Cl₂ from brine - Explain mercury cell operation - Analyze industrial electrolysis processes - Discuss environmental considerations State Faraday's laws of electrolysis - Define Faraday constant - Calculate mass deposited in electrolysis - Relate electricity to amount of substance |
In groups, learners are guided to:
Study mercury cell for NaOH production - Flow chart analysis of industrial processes - Discussion on applications and environmental impact - Purification of metals Experiment 4.10: Quantitative electrolysis of CuSO₄ - Measure mass vs electricity passed - Calculate Faraday constant - Verify Faraday's laws |
Flow charts, mercury cell diagrams, environmental impact data, industrial case studies
Accurate balance, copper electrodes, CuSO₄ solution, ammeter, timer, calculators |
KLB Secondary Chemistry Form 4, Pages 155-157
KLB Secondary Chemistry Form 4, Pages 161-164 |
|
| 8 | 1 |
ELECTROCHEMISTRY
|
Electrolysis Calculations I
|
By the end of the
lesson, the learner
should be able to:
Calculate mass of products from electrolysis - Determine volumes of gases evolved - Apply Faraday's laws to numerical problems - Solve basic electrolysis calculations |
In groups, learners are guided to:
Worked examples: Mass and volume calculations - Problems involving different ions - Practice with Faraday constant - Basic numerical problems |
Calculators, worked examples, practice problems, gas volume data, Faraday constant
|
KLB Secondary Chemistry Form 4, Pages 161-164
|
|
| 8 | 2 |
ELECTROCHEMISTRY
|
Electrolysis Calculations I
|
By the end of the
lesson, the learner
should be able to:
Calculate mass of products from electrolysis - Determine volumes of gases evolved - Apply Faraday's laws to numerical problems - Solve basic electrolysis calculations |
In groups, learners are guided to:
Worked examples: Mass and volume calculations - Problems involving different ions - Practice with Faraday constant - Basic numerical problems |
Calculators, worked examples, practice problems, gas volume data, Faraday constant
|
KLB Secondary Chemistry Form 4, Pages 161-164
|
|
| 8 | 3 |
ELECTROCHEMISTRY
|
Electrolysis Calculations I
|
By the end of the
lesson, the learner
should be able to:
Calculate mass of products from electrolysis - Determine volumes of gases evolved - Apply Faraday's laws to numerical problems - Solve basic electrolysis calculations |
In groups, learners are guided to:
Worked examples: Mass and volume calculations - Problems involving different ions - Practice with Faraday constant - Basic numerical problems |
Calculators, worked examples, practice problems, gas volume data, Faraday constant
|
KLB Secondary Chemistry Form 4, Pages 161-164
|
|
| 8 | 4-5 |
ELECTROCHEMISTRY
|
Electrolysis Calculations I
Electrolysis Calculations II |
By the end of the
lesson, the learner
should be able to:
Calculate mass of products from electrolysis - Determine volumes of gases evolved - Apply Faraday's laws to numerical problems - Solve basic electrolysis calculations Determine charge on ions from electrolysis data - Calculate current-time relationships - Solve complex multi-step problems - Apply concepts to industrial situations |
In groups, learners are guided to:
Worked examples: Mass and volume calculations - Problems involving different ions - Practice with Faraday constant - Basic numerical problems Complex problems: Determine ionic charges - Current-time-mass relationships - Multi-step calculations - Industrial calculation examples |
Calculators, worked examples, practice problems, gas volume data, Faraday constant
Calculators, complex problem sets, industrial data, student books |
KLB Secondary Chemistry Form 4, Pages 161-164
|
|
| 9 |
Mid term break |
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| 10 | 1 |
ELECTROCHEMISTRY
|
Advanced Applications and Problem Solving
|
By the end of the
lesson, the learner
should be able to:
Solve examination-type electrochemistry problems - Apply all concepts in integrated problems - Analyze real-world electrochemical processes - Practice complex calculations |
In groups, learners are guided to:
Comprehensive problems combining redox, cells, and electrolysis - Past examination questions - Industrial case study analysis - Advanced problem-solving techniques |
Past papers, comprehensive problem sets, industrial case studies, calculators
|
KLB Secondary Chemistry Form 4, Pages 108-164
|
|
| 10 | 2 |
ELECTROCHEMISTRY
|
Advanced Applications and Problem Solving
|
By the end of the
lesson, the learner
should be able to:
Solve examination-type electrochemistry problems - Apply all concepts in integrated problems - Analyze real-world electrochemical processes - Practice complex calculations |
In groups, learners are guided to:
Comprehensive problems combining redox, cells, and electrolysis - Past examination questions - Industrial case study analysis - Advanced problem-solving techniques |
Past papers, comprehensive problem sets, industrial case studies, calculators
|
KLB Secondary Chemistry Form 4, Pages 108-164
|
|
| 10 | 3 |
ELECTROCHEMISTRY
|
Advanced Applications and Problem Solving
|
By the end of the
lesson, the learner
should be able to:
Solve examination-type electrochemistry problems - Apply all concepts in integrated problems - Analyze real-world electrochemical processes - Practice complex calculations |
In groups, learners are guided to:
Comprehensive problems combining redox, cells, and electrolysis - Past examination questions - Industrial case study analysis - Advanced problem-solving techniques |
Past papers, comprehensive problem sets, industrial case studies, calculators
|
KLB Secondary Chemistry Form 4, Pages 108-164
|
|
| 10 | 4-5 |
ELECTROCHEMISTRY
METALS |
Advanced Applications and Problem Solving
Chief Ores of Metals and General Extraction Methods |
By the end of the
lesson, the learner
should be able to:
Solve examination-type electrochemistry problems - Apply all concepts in integrated problems - Analyze real-world electrochemical processes - Practice complex calculations Name chief ores of common metals - State formulas of metal ores - Explain general methods of ore concentration - Describe factors affecting extraction methods |
In groups, learners are guided to:
Comprehensive problems combining redox, cells, and electrolysis - Past examination questions - Industrial case study analysis - Advanced problem-solving techniques Q/A: Review metallic bonding and reactivity - Study Table 5.1 - metal ores and formulas - Discussion on ore concentration methods - Froth flotation demonstration |
Past papers, comprehensive problem sets, industrial case studies, calculators
Chart of metal ores, ore samples if available, Table 5.1, flotation apparatus demonstration |
KLB Secondary Chemistry Form 4, Pages 108-164
KLB Secondary Chemistry Form 4, Pages 139-140 |
|
| 11 | 1 |
METALS
|
Occurrence and Extraction of Sodium
|
By the end of the
lesson, the learner
should be able to:
Describe occurrence of sodium compounds - Explain Down's process for sodium extraction - Draw labeled diagram of Down's cell - Write electrode equations for sodium extraction |
In groups, learners are guided to:
Study sodium occurrence in nature - Teacher demonstration: Down's cell diagram and operation - Discussion on calcium chloride addition - Write electrode reactions and overall equation |
Down's cell diagram, charts showing sodium occurrence, electrode reaction equations
|
KLB Secondary Chemistry Form 4, Pages 140-142
|
|
| 11 | 2 |
METALS
|
Occurrence and Extraction of Sodium
|
By the end of the
lesson, the learner
should be able to:
Describe occurrence of sodium compounds - Explain Down's process for sodium extraction - Draw labeled diagram of Down's cell - Write electrode equations for sodium extraction |
In groups, learners are guided to:
Study sodium occurrence in nature - Teacher demonstration: Down's cell diagram and operation - Discussion on calcium chloride addition - Write electrode reactions and overall equation |
Down's cell diagram, charts showing sodium occurrence, electrode reaction equations
|
KLB Secondary Chemistry Form 4, Pages 140-142
|
|
| 11 | 3 |
METALS
|
Occurrence and Extraction of Aluminium I
|
By the end of the
lesson, the learner
should be able to:
Describe occurrence and ores of aluminium - Explain ore concentration process - Write equations for bauxite purification - Describe amphoteric nature of aluminium oxide |
In groups, learners are guided to:
Study aluminium occurrence and bauxite composition - Demonstration of amphoteric properties - Equations for bauxite dissolution in NaOH - Discussion on impurity removal |
Bauxite samples, NaOH solution, charts showing aluminium extraction steps, chemical equations
|
KLB Secondary Chemistry Form 4, Pages 142-143
|
|
| 11 | 4-5 |
METALS
|
Extraction of Aluminium II - Electrolysis
|
By the end of the
lesson, the learner
should be able to:
Explain role of cryolite in aluminium extraction - Describe electrolytic extraction process - Write electrode equations - Explain why anodes need replacement |
In groups, learners are guided to:
Study Hall-Heroult process setup - Analysis of electrolytic cell diagram - Write electrode reactions - Discussion on energy requirements and anode corrosion |
Electrolytic cell diagram, cryolite samples, graphite electrodes, energy consumption data
|
KLB Secondary Chemistry Form 4, Pages 142-143
|
|
| 12 | 1 |
METALS
|
Occurrence and Extraction of Iron
|
By the end of the
lesson, the learner
should be able to:
Describe iron ores and occurrence - Explain blast furnace operation - Write equations for iron extraction reactions - Describe slag formation process |
In groups, learners are guided to:
Study iron ores and blast furnace structure - Analysis of temperature zones in furnace - Write reduction equations - Discussion on limestone role and slag formation |
Blast furnace diagram, iron ore samples, coke, limestone, temperature zone charts
|
KLB Secondary Chemistry Form 4, Pages 143-145
|
|
| 12 | 2 |
METALS
|
Extraction of Zinc
|
By the end of the
lesson, the learner
should be able to:
Describe zinc ores and occurrence - Compare reduction and electrolytic methods - Write equations for zinc extraction - Explain lead removal process |
In groups, learners are guided to:
Study zinc blende and calamine - Compare two extraction methods - Roasting equations and reduction process - Discussion on electrolytic method advantages |
Zinc ore samples, flow charts showing both methods, electrolytic cell diagrams
|
KLB Secondary Chemistry Form 4, Pages 145-148
|
|
| 12 | 3 |
METALS
|
Extraction of Lead and Copper
|
By the end of the
lesson, the learner
should be able to:
Explain extraction of lead from galena - Describe copper extraction from copper pyrites - Write relevant chemical equations - Compare purification methods |
In groups, learners are guided to:
Study galena roasting and reduction - Copper pyrites multi-step extraction - Electrolytic purification processes - Discussion on blister copper formation |
Lead and copper ore samples, extraction flow charts, electrolytic purification diagrams
|
KLB Secondary Chemistry Form 4, Pages 148-151
|
|
| 12 | 4-5 |
METALS
|
Extraction of Lead and Copper
Physical Properties of Metals |
By the end of the
lesson, the learner
should be able to:
Explain extraction of lead from galena - Describe copper extraction from copper pyrites - Write relevant chemical equations - Compare purification methods Compare physical properties of sodium, aluminium, zinc, iron and copper - Explain metallic bonding effects - Relate structure to properties - Analyze property data |
In groups, learners are guided to:
Study galena roasting and reduction - Copper pyrites multi-step extraction - Electrolytic purification processes - Discussion on blister copper formation Study Table 5.2 - physical properties comparison - Discussion on metallic bonding and electron sea model - Analysis of melting points, conductivity, and density trends |
Lead and copper ore samples, extraction flow charts, electrolytic purification diagrams
Table 5.2, metal samples, conductivity apparatus, density measurement equipment |
KLB Secondary Chemistry Form 4, Pages 148-151
KLB Secondary Chemistry Form 4, Pages 151-152 |
|
| 13 |
Exam 2 |
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| 14 |
Release of exam & school closure |
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