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Category: Chemistry
Free Chemistry online learning lesson notes and videos for Secondary school and High school students. The lesson notes, videos and interactive slideshows are built on curriculum that is designed to meet national and international O’ Level standard for Senior High School or Senior Secondary school students (SS1, SS2, SS3 or SHS1, SH2, SH3) and Grade 9, Grade 10, Grade 11 and Grade 12 students.
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CONTENT Calculation Based on Percentage Purity and Impurity of substances. Percentage/amount of water of crystallization, Molar mass of the acidic […]
Test for Anions, Identification of gases e.g CO2, SO2 and O2. Characteristics test for anions e.g SO42-,SO32-,CO32-,NO-3, Cl–, etc. The […]
Introduction to Qualitative Analysis Test for carbons using H2S, NaOH and NH4OH, Confirmatory Test for the cat ions. Introduction to […]
CONTENT Aluminum Occurrence Aluminum can be obtained as Kaolin, Al2O3.2SiO3.2H2O, cryolite. Na3AlF6, Corundum Al2O3 and mica K2O.Al2O3.6SiO2. NB: the main […]
Metals are found mixed with earthy materials as ores. Ores are often concentrated and converted to oxides before extraction Concentration […]
CONTENT Properties, Factors affecting the formation of metals Inter molecular bonding Vander-walls forces and hydrogen bonds Composition and Uses. Metallic […]
CONTENT Covalent Molecules e.g methane, diamond, crystalline solid – their network structure e.g diamond. Simple Molecules and their shapes The […]
CONTENT Nuclear Fusion and Nuclear Fission with Example Effects and Application of Radioactivity Comparison of Nuclear Reaction and Ordinary Chemical […]
CONTENT Types and Nature of Radiation Half-life as a measure of the stability of the nucleus. Nuclear Chemistry is […]