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SCHEME OF WORK
Chemistry
Form 2 2025
TERM III
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WK LSN TOPIC SUB-TOPIC OBJECTIVES T/L ACTIVITIES T/L AIDS REFERENCE REMARKS
1

Opener exams

2 1
SALTS
Types of salts.
By the end of the lesson, the learner should be able to:
Define a salt.
Describe various types of salts and give several examples in each case.
Descriptive approach. Teacher exposes new concepts.
text book
K.L.B. BOOK II P. 91
2 2-3
SALTS
Solubility of salts in water.
Solubility of bases in water.
By the end of the lesson, the learner should be able to:
To test solubility of various salts in cold water/warm water.
To test solubility of various bases in water.
To carry out litmus test on the resulting solutions.
Class experiments- Dissolve salts in 5 cc of water.
Record the solubility in a table,
Analyse the results.
Class experiments- Dissolve salts in 5cc of water.
Record the solubility in a table,
Carry out litmus tests.
Discuss the results.
Sulphates, chlorides, nitrates, carbonates of various metals.




Oxides, hydroxides, of various metals, litmus papers.
K.L.B. BOOK II PP. 92-93
K.L.B. BOOK IIPP. 94-95
2 4
SALTS
Methods of preparing various salts.
By the end of the lesson, the learner should be able to:
To describe various methods of preparing some salts.
Experimental and descriptive treatments of preparation of salts e.g. ZnSO4, CuSO4, NaCl and Pb(NO3)2.

CuO, H2SO4, HCl, NaOH, PbCO3, dil HNO3.
K.L.B. BOOK II pp96
2 5
SALTS
Methods of preparing various salts.
By the end of the lesson, the learner should be able to:
To describe various methods of preparing some salts.
Experimental and descriptive treatments of preparation of salts e.g. ZnSO4, CuSO4, NaCl and Pb(NO3)2.

CuO, H2SO4, HCl, NaOH, PbCO3, dil HNO3.
K.L.B. BOOK II pp96
3 1
SALTS
Direct synthesis of a salts.
By the end of the lesson, the learner should be able to:
To describe direct synthesis of a salt.
To write balanced equations for the reactions.
Group experiments- preparation of iron (II) sulphide by direct synthesis.
Give other examples of salts prepared by direct synthesis.
Students write down corresponding balanced equations.
Iron,
Sulphur
K.L.B. BOOK II P. 104
3 2-3
SALTS
Direct synthesis of a salts.
Ionic equations.
By the end of the lesson, the learner should be able to:
To describe direct synthesis of a salt.
To write balanced equations for the reactions.
To identify spectator ions in double decomposition reactions.
To write ionic equations correctly.
Group experiments- preparation of iron (II) sulphide by direct synthesis.
Give other examples of salts prepared by direct synthesis.
Students write down corresponding balanced equations.


Q/A: Ions present in given reactants.
Deduce the products of double decomposition reactions.
Give examples of equations.
Supervised practice.
Iron,
Sulphur
PbNO3, MgSO4 solutions.
K.L.B. BOOK II P. 104
3 4
SALTS
Ionic equations.
By the end of the lesson, the learner should be able to:
To identify spectator ions in double decomposition reactions.
To write ionic equations correctly.
Q/A: Ions present in given reactants.
Deduce the products of double decomposition reactions.
Give examples of equations.
Supervised practice.
PbNO3, MgSO4 solutions.
K.L.B. BOOK II
3 5
SALTS
Effects of heat on carbonates.
Effects of heat on nitrates.
By the end of the lesson, the learner should be able to:
To state effects of heat on carbonates.
To predict products resulting from heating metal carbonates.
Group experiments- To investigate effects of heat on Na2CO3, K2CO3, CaCO3, ZnCO3, PbCO3, e.t.c.
Observe various colour changes before, during and after heating.
Write equations for the reactions.
Various carbonates.
Common metal nitrates.
K.L.B. BOOK II PP. 108-109
4 1
SALTS
Effects of heat on sulphates.
By the end of the lesson, the learner should be able to:
To state effects of heat on sulphates.
To predict products results from heating metal sulphates.
Group experiments- To investigate effects of heat on various sulphates.
Observe various colour changes before, during and after heating.
Write equations for the reactions.
Common sulphates.
K.L.B. BOOK II P. 113
4 2-3
SALTS
Hygroscopy, Deliquescence and Efflorescence.
Uses of salts.
By the end of the lesson, the learner should be able to:
To define hygroscopic deliquescent and efflorescent salts.
To give examples of hygroscopic deliquescent and efflorescent salts.

To state uses of salts
Prepare a sample of various salts.
Expose them to the atmosphere overnight.
Students classify the salts as hygroscopic, deliquescent and / or efflorescent.

Teacher elucidates uses of salts.

K.L.B. BOOK II P. 114
K.L.B. BOOK II P. 114
4 4
EFFECTS OF AN ELECTRIC CURRENT ON SUBSTANCES.
Electrical conductivity.
By the end of the lesson, the learner should be able to:
To test for electrical conductivities of substances.
Group experiments- to identify conductors and non-conductors.
Explain the difference in (non) conductivities.
Various solids, bulb, battery, & wires.
K.L.B. BOOK II PP. 118-119
4 5
EFFECTS OF AN ELECTRIC CURRENT ON SUBSTANCES.
Molten electrolytes.
By the end of the lesson, the learner should be able to:
To test for electrical conductivities molten electrolytes.
Group experiments- to identify electrolytes in molten form.
Explain the difference in molten electrolytes.
Molten candle wax
Sugar
Sulphur
Lead oxide.
K.L.B. BOOK IIPP. 120-121
5 1
EFFECTS OF AN ELECTRIC CURRENT ON SUBSTANCES.
Electrolysis.
By the end of the lesson, the learner should be able to:
To define electrolysis
To describe the process of electrolysis in terms of charge movement.
Descriptive approach punctuated with Q/A.
K.L.B. BOOK II
5 2-3
EFFECTS OF AN ELECTRIC CURRENT ON SUBSTANCES.
Aqueous electrolytes. Electrodes.
Reaction on electrodes.
By the end of the lesson, the learner should be able to:
To define an electrolyte
To test for electrical conductivities of electrodes.
To describe half- equation reactions at the cathode and anode
To investigate chemical effect of an electric current.
Classify the solutions as electrolyte or non -electrolytes.
Discuss the electrical properties of the solutions.
To demonstrate ?Electrolysis of molten lead (II) bromide
Observe colour changes
Explanation of half-equations and reactions at the electrodes.
Graphite electrodes
Battery
Various aqueous solutions switch bulb.
Graphite electrodes
Battery
Various aqueous solutions switch.
K.L.B. BOOK II PP.122-123
K.L.B. BOOK II PP.126-127
5 4
EFFECTS OF AN ELECTRIC CURRENT ON SUBSTANCES.
Binary electrolyte.
By the end of the lesson, the learner should be able to:
To define a binary electrolyte.
To state the products of a binary electrolyte.
Completing a table of electrolysis of binary electrolytes.
text book
K.L.B. BOOK II P.127
5 5
EFFECTS OF AN ELECTRIC CURRENT ON SUBSTANCES.
Application of electrolysis.
By the end of the lesson, the learner should be able to:
To state application of electrolysis.
Discussion and explanations.
text book
K.L.B. BOOK II P. 128
6

Midterm exams
7 1
EFFECTS OF AN ELECTRIC CURRENT ON SUBSTANCES.
Electroplating.
By the end of the lesson, the learner should be able to:
To describe electroplating process.
Experiment- Left overnight.
Electroplating an iron nail with silver nitrate/ copper sulphate.
Brief discussion.
Silver nitrate
Iron nail
Complete circuit battery.
K.L.B. BOOK II PP. 129-30
7 2-3
CARBON AND SOME OF ITS COMPOUNDS.
Allotropy.
Physical and chemical properties of diamond, graphite and amorphous carbon
Burning carbon and oxygen.
By the end of the lesson, the learner should be able to:
Define allotropes and allotropy.
Identify allotropes of carbon.
Represent diamond and graphite diagrammatically.

Describe reaction of carbon with oxygen.
Teacher exposes new terms.
Review covalent bond.
Discuss boding in diamond and graphite.

Teacher demonstration- Prepare oxygen and pass dry oxygen into a tube containing carbon. Heat the carbon. Observe effects on limewater.
text book
Charcoal, graphite.
Carbon, limewater, tube, limewater stand& Bunsen burner.
K.L.B. BOOK II PP. 131-133
K.L.B. BOOK II PP. 134-135
7 4
CARBON AND SOME OF ITS COMPOUNDS.
Reduction properties of carbon.
By the end of the lesson, the learner should be able to:
Describe reduction properties of carbon.
Show reduction properties of carbon.
Teacher demonstration ? Burn strongly a mixture of carbon and CuO on a bottle top.
Observe colour changes and give underlying explanation
CuO, pounded charcoal, Bunsen burner& bottle top
K.L.B. BOOK II P.126
7 5
CARBON AND SOME OF ITS COMPOUNDS.
Reaction of carbon with acids. Preparation of CO2.
By the end of the lesson, the learner should be able to:
Describe reaction of carbon with acids.




Prepare CO2 in the lab.
Teacher demonstration- reaction of carbon with hot conc HNO3.
Write balanced equations for the reaction.

Review effects of heat on carbonates.
Group experiments/teacher demonstration- preparation of CO2.
Conc. HNO3, limewater.
K.L.B. BOOK II P.126
8-9

End term exams and closing

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