CHEMSYLBSF3
i.
Molecular
Equations
§ Write word equations for
given chemical reactions
§ Write formula equations using
chemical symbols
§ Balance chemical equations
ii.
Ionic
Equations
§ Differentiate between
molecular equations and ionic equations
§ Write balanced ionic
equations
i.
The
Concept of Hardness of Water
§ Explain the concept of
hardness of water
§ State causes of permanent and
temporary hardness in water
ii.
Types
of Hardness of Water
§ Identify types of hardness of
water
§ Differentiate soft from hard
water
iii.
Treatment
and Purification of Hard Water
§ Examine process of hard water
treatment and purification
§ Describe the importance of
hard water treatment and purification
§ State the importance of hard
water in daily life
i.
Acids
and Bases
§ Investigate the natural
sources of acids and bases
§ Determine the reactions of
acids with various materials
§ Determine the reactions of
alkalis with various materials
§ Determine the reactions of
bases with various substances
§ Applications of acid-base
neutralization in everyday life
ii.
Indicators
§ Explain an indicator from
locally available materials
§ Test the acidity and
alkalinity of substance using indicators
§ Describe the concept of an
indicator
iii.
Salts
§ Investigate the natural
source of salts in daily life
§ Analyse the solubility of different
salts in the laboratory
§ Prepare salts in the
laboratory
§ Examine the effects of heat
on salts
§ Explain the uses of different
types of salts in everyday life
i.
The
Mole as a Unit of Measurement
§ Compare the mole with other
units of measurements
§ Measure molar quantities of
different substances
ii.
Application
of the Mole Concept
§ Convert known masses of
elements, molecules or ions to moles
§ Convert known volumes of gases
at S.T.P to moles
§ Change masses of solids or
volumes of known gases to actual number of parties
§ Prepare molar solutions of
various soluble substances
§ Perform calculations based on
the mole concept
i.
Standard
Volumetric Apparatus
§ Explain the concept of
volumetric analysis
§ Use volumetric apparatus
ii.
Standard
Solutions
§ Explain the steps for
preparation of standard solutions of common acids
§ Prepare standard solutions of
bases
§ Carry out acid-base titration
experiments
iii.
Volumteric
Calculations
§ Standardize common mineral
acids
§ Find the relative atomic mass
of unknown element in an acid or alkali
§ Calculate the percentage
purity of an acid or an alkali
§ Find the number of molecules
of water of crystallization of a substance
iv.
Application
of Volumetric Analysis
§ Explain the application of
volumetric analysis in real life situations
§ Compare industrial and
laboratory skills of volumetric analysis
i.
Ionic
Theory
§ Distinguish electrolytes from
non-electrolytes
§ Categorize weak and strong
electrolytes
ii.
The
Mechanisms of Electrolysis
§ Set up electrolytic cells of
different electrolytes in the molten and aqueous states
§ Explain ionic migrations
during electrolysis and the preferential discharge of ions at the electrodes
§ Perform experiments to
identify the products of electrolysis when different electrolytes are used
§ Perform experiments to
identify the products of electrolysis when different electrodes are used
iii.
Laws
of Electrolysis
§ Carry out experiments to
relate masses liberated and quantity of electricity passed
§ Carry out an experiment to
verify Faraday’s First Law of Electrolysis
§ Carry out an experiment to
verify Faraday’s Second Law of Electrolysis
§ Relate the chemical
equivalents of elements and quantity of electricity passed
iv.
Application
of Electrolysis
§ Outline the industrial
purification of copper by electrolysis
§ Carry out an experiment on
electroplating of metallic materials
i.
The
Rate of Chemical Reactions
§ Compare the rates of chemical
reactions
§ Perform experiments to
measure the rates of chemical reactions
ii.
Factors
Affecting the Rate of Chemical Reactions
§ Describe the effect of
concentration on the rate of a reaction
§ Demonstrate the effect of
temperature on the rate of a reaction
§ Show the effect of surface
area of a solid on the rate of a reaction
§ Demonstrate the effect of
catalyst on the rate of a reaction
iii.
Reversible
and Irreversible Reactions
§ Compare reversible and
irreversible reactions
§ Describe the concept of
reversible and irreversible reactions
iv.
Equilibrium
Reactions
§ Differentiate equilibrium
reactions from simple reversible reactions
§ Describe two equilibrium
reactions of industrial importance
v.
Endothermic
and Exothermic Reaction
§ Explain the concept of
endothermic and exothermic reactions
§ Draw energy level diagrams
for exothermic and endothermic reactions
i.
Occurrence
and Location of Metals in Tanzania
§ Identify locations of
important metal ores in Tanzania
§ Compare the abundances of
metals in the earth’s crust
ii.
Chemical
Properties of Metals
§ Differentiate the physical
and chemical strengths of metals
§ Compare the reducing Power of
different metals
iii.
Extraction
of Metals by Electrolytic Reduction
§ Outline the criteria for the
choice of the best methods of extracting a metal from its ore
§ Explain the extraction of sodium
from its ore
iv.
Extraction
of Metals by Chemical Reduction
§ Describe the extraction of
iron from its ore
v.
Environmental
Consideration
§ Identify environmental
destruction caused by extraction of metals
§ Suggest intervention measures
to rectify environmental destruction
i.
Oxides
§ Prepare oxides of some metals
by direct and indirect methods
§ Classify metal oxides
§ Demonstrate the reactions of
metal oxides with water and dilute acids
§ Explain the uses of metal
oxides
ii.
Hydroxides
§ Prepare hydroxides of some
metals by direct and indirect methods
§ Classify metal hydroxides
§ Explain the chemical
properties of metal hydroxides
§ Describe the uses of metal
hydroxides
iii.
Carbonates
and Hydrogen Carbonates
§ Prepare metal carbonate and
hydrogen carbonates by different methods
§ Classify metal carbonates
§ Analyse the chemical
properties of metal carbonates
§ Describe the uses of
carbonates and hydrogen carbonates
iv.
Nitrates
§ Prepare metal nitrates
§ Explain the chemical properties
of metal nitrates
§ Explain the uses of metal
nitrates
v.
Chlorides
§ Prepare metal chlorides by
direct and indirect methods
§ Explain the chemical
properties of metal chlorides
§ Explain the uses of metal
chloride
vi.
Sulphates
§ Prepare soluble and insoluble
sulphates
§ Explain chemical properties
of sulphates
§ Describe uses of sulphates
