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 Biology – Transport System

CONTENT Transport system Need for transport system Relating transport in lower organisms to that in higher organism Transport material in animals and plants Diverse mechanisms of transportation in some organisms

SS1 Chemistry – Empirical and Molecular Formulae

EMPIRICAL AND MOLECULAR FORMULAE The empirical formula is the simplest formula that gives the ratio of the number of different atoms present in a compound. It does not give the