SALTS

1. Types of salts.
2. Solubility of salts in water.

By the end of the lesson, the learner should be able to:
1. Define a salt.
2. Describe various types of salts and give several examples in each case.
3. To test solubility of various salts in cold water/warm water.

1. Descriptive approach. Teacher exposes new concepts.
1. Class experiments- Dissolve salts in 5 ml of water.
2. Record the solubility in a table,
3. Analyse the results.

1. Text book
2. Sulphates, chlorides, nitrates, carbonates of various metals.
 

K.L.B. BOOK II P. 91
K.L.B. BOOK II PP. 92-93

SALTS

Solubility of bases in water.

By the end of the lesson, the learner should be able to:
1.To test solubility of various bases in water.
2. To carry out litmus test on the resulting solutions.

1. Class experiments- Dissolve Bases in 5ml of water.
2. Record the solubility in a table,
3. Carry out litmus tests.
4. Discuss the results.

1. Oxides, hydroxides, of various metals, litmus papers.

K.L.B. BOOK IIPP. 94-95

SALTS

Methods of preparing various salts.

By the end of the lesson, the learner should be able to:
1. To describe various methods of preparing some salts.

 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

SALTS

Methods of preparing various salts.

By the end of the lesson, the learner should be able to:
1. To describe various methods of preparing some salts.

 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

SALTS

1. Direct synthesis of a salts.
2. Ionic equations.
Effects of heat on carbonates.

By the end of the lesson, the learner should be able to:
1.  To describe direct synthesis of a salt.
2. To write balanced equations for the reactions.
3. To identify spectator ions in double decomposition reactions.
4. To write ionic equations correctly.

1. Group experiments- preparation of iron (II) sulphide by direct synthesis.
Give other examples of salts prepared by direct synthesis.
2. Students write down corresponding balanced equations.

Q/A: 1. Ions present in the given reactants.
2. Deduce the products of double decomposition reactions.
3. Give examples of equations.
4. Supervised practice.

Iron,
Sulphur
PbNO3, MgSO4 solutions.
Various carbonates.

K.L.B. BOOK II P. 104

SALTS

Effects of heat on nitrates.

By the end of the lesson, the learner should be able to:
1. To state effects of heat on nitrates.
2. To predict products resulting from heating metal nitrates.

1. Group experiments- To investigate effects of heat on various metal nitrates.
2. Observe various colour changes before, during and after heating.
3. Write equations for the reactions.

Common metal nitrates.

K.L.B. BOOK II PP. 110-111

SALTS

Effects of heat on sulphates.
Hygroscopy, Deliquescence and Efflorescence.

By the end of the lesson, the learner should be able to:
1. To state effects of heat on sulphates.
2. To predict products results from heating metal sulphates.

1. Group experiments- To investigate effects of heat on various sulphates.
2. Observe various colour changes before, during and after heating.
3. Write equations for the reactions.

Common sulphates.

K.L.B. BOOK II P. 113

SALTS

Uses of salts.

By the end of the lesson, the learner should be able to:
1.To state uses of salts

Teacher elucidates uses of salts.

Textbook

K.L.B. BOOK II P. 114