SS2 Chemistry – Chlorine and Other Halogens
HALOGENS The halogens are the group VII elements. The family comprises of fluorine, chlorine, bromine, iodine and astatine. Each member of the family contains 7 electrons at the valence shell.
Tag: SS2
SS2 Chemistry – Oxygen and Its Compounds
TOPIC: OXYGEN Oxygen is the most abundant element on Earth. It belongs to Group VI of the Periodic Table. The Other elements in the Group are sulphur, selenium, tellurium, and
SS2 Chemistry – Chemical Equilibrium
CHEMICAL EQUILIBRIUM Chemical equilibrium is a state where there is no observable change in the properties of a system concerning time. An equilibrium system may be static or dynamic. A
SS2 Chemistry – Exothermic and Endothermic Reactions
Types of Reaction Chemical reactions can generally be grouped as follows: Combination reaction: This is a reaction in which two or more substances combine to form a single compound. E.g.
SS2 Chemistry – Application of Electrochemical Cells
CONTENT Distinction between Primary and Secondary Cells Types of Electrochemical Cells. APPLICATION OF ELECTROCHEMICAL CELLS Electrochemical cells are widely used to generate small currents of electricity for everyday purposes
SS2 Chemistry – Electrochemical Cells
TOPIC: ELECTROCHEMICAL CELLS CONTENT Electrolytic and Electrochemical Cells with their differences. Drawing and Writing of Cell Diagrams. Standard Electrode Potential. Calculation of e.m.f of a Cell. ELECTROLYTIC AND ELECTROCHEMICAL
SS2 Chemistry – Faraday’s Laws of Electrolysis
CONTENT Faraday’s First and Second laws of electrolysis. Verification of Faraday’s Laws of Electrolysis. Calculations based on Faraday’s Laws. FARADAY’S FIRST LAW OF ELECTROLYSIS Faraday’s first law states that
SS2 Chemistry – Electrolysis of Specified Electrolytes
TOPIC: ELECTROLYSIS OF SOME ELECTROLYTES ELECTROLYSIS OF CONCENTRATED SODIUM CHLORIDE SOLUTION (BRINE) USING GRAPHITE ANODE. Ions present in solution. NaCl H2O Cations Na+ H+ Anions Cl– OH– At
SS2 Chemistry – Electrolysis
CONTENT Meaning of Electrolysis Definition of Terms Preferential Discharge of Ions during Electrolysis. ELECTROLYSIS Chemical decomposition of a substance can be brought about by heating. Similarly, electrical effect can