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SS1 Chemistry Third Term: Chemical Industries

Introduction The development of the chemical industry had important effects on chemistry. In 1749, the Chamber process for the commercial manufacture of hydrogentetraoxosulphate (vi) was developed. Important Raw Materials The important raw materials are air, sea-water and rock salt, sulphur, calcium trioxocarbonate (IV), metallic mineral ores, coal, natural gas and petroleum. Most of the naturally

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JSS1 Business Studies Third Term: Limited Liability Company

Meaning of a Limited Liability Company Limited Liability Companies is usually formed by people who contribute to a common purse for the purpose of making running a business enterprise with the aim of making a profit. The contribution made by each person is called shares; a person who contributes his shares is then referred to

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SS2 Civic Education Third Term: Importance of Interpersonal Relationships

Meaning of Inter-communal Relationship Inter-communal Relationship is a relationship which exists between two or more communities. One of the main objectives of any good government is to bring government close to the citizens and provide a forum where local people can defend and develop their interest thereby contributing to the peace and harmony development of

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SS2 Mathematics Third Term: Trigonometry: Derivation of Sine Rule and Application; Derivation of Cosines Rule and Application

Introduction The sine rule formula states that the ratio of a side to the sine function applied to the corresponding angle is same for all sides of the triangle. For a triangle ABC, sine rule can be stated as given below: The sine rule formula can be used to find the measure of unknown angle

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SS1 Mathematics Third Term: Mean Deviation for Grouped Data

Introduction Range and quartile deviations are positional measures of dispersion, wherein all the observations are not taken into account in the calculation. Now we consider a measure of dispersion called mean deviation based on all observations. Consider the observation 3, 5, 6, 7, 9 A.M. = `(3+5+6+7+9)/(5)` = 6 The sum of the deviations of the items

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