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Chemistry
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TERM III
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WK LSN TOPIC SUB-TOPIC OBJECTIVES T/L ACTIVITIES T/L AIDS REFERENCE REMARKS
2 2
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 3-4
SALTS
Methods of preparing various salts.
Direct synthesis of a salts.
By the end of the lesson, the learner should be able to:
To describe various methods of preparing some salts.
To describe direct synthesis of a salt.
To write balanced equations for the reactions.
Experimental and descriptive treatments of preparation of salts e.g. ZnSO4, CuSO4, NaCl and Pb(NO3)2.


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.
CuO, H2SO4, HCl, NaOH, PbCO3, dil HNO3.
Iron,
Sulphur
K.L.B. BOOK II pp96
K.L.B. BOOK II P. 104
3 1
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 2
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 3-4
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.
To state effects of heat on nitrates.
To predict products resulting from heating metal nitrates.
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.

Group experiments- To investigate effects of heat on various metal nitrates.
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
K.L.B. BOOK II PP. 110-111
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
SALTS
Hygroscopy, Deliquescence and Efflorescence.
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.
Prepare a sample of various salts.
Expose them to the atmosphere overnight.
Students classify the salts as hygroscopic, deliquescent and / or efflorescent.
K.L.B. BOOK II P. 114
4 3-4
SALTS
CARBON AND SOME OF ITS COMPOUNDS.
Uses of salts.
Allotropy.
By the end of the lesson, the learner should be able to:
To state uses of salts
Define allotropes and allotropy.
Identify allotropes of carbon.
Represent diamond and graphite diagrammatically.
Teacher elucidates uses of salts.
Teacher exposes new terms.
Review covalent bond.
Discuss boding in diamond and graphite.

text book
K.L.B. BOOK II P. 114
K.L.B. BOOK II PP. 131-133
5 1
CARBON AND SOME OF ITS COMPOUNDS.
Physical and chemical properties of diamond, graphite and amorphous carbon
By the end of the lesson, the learner should be able to:
Describe physical and chemical properties of diamond, graphite and amorphous carbon.
State uses of carbon allotropes.
Discuss physical and chemical properties of diamond, graphite and amorphous carbon.
Explain the Physical and chemical properties of diamond, graphite and amorphous carbon.
Discuss uses of carbon allotropes.
Charcoal, graphite.
K.L.B. BOOK II pp 134
5 2
CARBON AND SOME OF ITS COMPOUNDS.
Burning carbon and oxygen.
By the end of the lesson, the learner should be able to:
Describe reaction of carbon with oxygen.
Teacher demonstration- Prepare oxygen and pass dry oxygen into a tube containing carbon. Heat the carbon. Observe effects on limewater.
Carbon, limewater, tube, limewater stand& Bunsen burner.
K.L.B. BOOK II PP. 134-135
5 3-4
CARBON AND SOME OF ITS COMPOUNDS.
Reduction properties of carbon.
Reaction of carbon with acids. Preparation of CO2.
By the end of the lesson, the learner should be able to:
Describe reduction properties of carbon.
Show reduction properties of carbon.
Describe reaction of carbon with acids.




Prepare CO2 in the lab.
Teacher demonstration ? Burn strongly a mixture of carbon and CuO on a bottle top.
Observe colour changes and give underlying explanation
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.
CuO, pounded charcoal, Bunsen burner& bottle top
Conc. HNO3, limewater.
K.L.B. BOOK II P.126
K.L.B. BOOK II P.126
6 1
CARBON AND SOME OF ITS COMPOUNDS.
Properties of CO2.
By the end of the lesson, the learner should be able to:
Describe properties of CO2
Simple experiments to determine properties of CO2.

Discuss the observations.
Lime water,
Magnesium ribbon,
Universal indicator,
lit candle.
K.L.B. BOOK II PP.138-139
6 2
CARBON AND SOME OF ITS COMPOUNDS.
Properties of CO2.
By the end of the lesson, the learner should be able to:
Describe properties of CO2
Simple experiments to determine properties of CO2.

Discuss the observations.
Lime water,
Magnesium ribbon,
Universal indicator,
lit candle.
K.L.B. BOOK II PP.138-139
6 3-4
CARBON AND SOME OF ITS COMPOUNDS.
Chemical equations for reactions involving CO2.
Uses of CO2.
By the end of the lesson, the learner should be able to:
Write balanced CO2.
State uses of CO2
Give examples of reactions. Write corresponding balanced chemical equations.
Discuss briefly the uses of CO2.
text book
K.L.B. BOOK II PP.139-140
K.L.B. BOOK II PP.140-1
7 1
CARBON AND SOME OF ITS COMPOUNDS.
Carbon monoxide lab preparation.
By the end of the lesson, the learner should be able to:
To describe preparation of carbon monoxide in the lab
Teacher demonstration: preparation of carbon monoxide in the lab.
Make observations.
text book
K.L.B. BOOK II PP. 142-143
7 2
CARBON AND SOME OF ITS COMPOUNDS.
Chemical properties of carbon monoxide.
By the end of the lesson, the learner should be able to:
To describe chemical properties of carbon monoxide.
Description of properties of carbon monoxide.
Discussion and writing of chemical equations.
text book
K.L.B. BOOK II PP. 144-145
7 3-4
CARBON AND SOME OF ITS COMPOUNDS.
Carbonates and hydrogen carbonates.
Heating carbonates and hydrogen carbonates.
By the end of the lesson, the learner should be able to:
To write chemical equations for reactions of carbonates and hydrogen carbonates with acids.
To write equations for reaction of carbonates and hydrogen carbonates on heating.
Discuss the observations above.
Write chemical equations for the reactions.
Discuss the above observations.
Write corresponding balanced equations.
text book
K.L.B. BOOK II
K.L.B. BOOK II PP.150-151
8 1
CARBON AND SOME OF ITS COMPOUNDS.
Extraction of sodium carbonate from trona.
By the end of the lesson, the learner should be able to:
To draw schematic diagram for extraction of sodium carbonates.
Discuss each step of the process.
Write relevant equations.
text book
K.L.B. BOOK II PP. 153-157
8 2
CARBON AND SOME OF ITS COMPOUNDS.
Solvay process of preparing sodium carbonate.
By the end of the lesson, the learner should be able to:
To draw schematic diagram for extraction of sodium carbonates.
Discuss each step of the process.

Write relevant equations.
text book, chart
K.L.B. BOOK II
8 3-4
CARBON AND SOME OF ITS COMPOUNDS.
Importance of carbon in nature. & its effects on the environment.
By the end of the lesson, the learner should be able to:
To discuss: - Importance of carbon in nature.
&
Effects of carbon on the environment.
Discuss the carbon cycle and processes that increase/ reduce amount of CO2 in the air.
Uses of CO2 in soft drinks and fire extinguishers.
text book
K.L.B. BOOK II PP.157-158

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