General Mechanism of Amide Reactions
The chemistry of Carboxylic acid derivatives functional groups is closely related. The main difference is the presence of
Polyamides
What are polyamides? Polyamides are polymers where the repeating units are held together by amide links. An amide
Specialized cells
Different types of cells carry out specific functions and when all cells combine their functions, they can share
Measurement- physical quantities
Physical quantities Physical quantity is a property of an object or substance that can be measured using an
Density notes
Density of liquids Density is the mass per unit volume The units of density is g/cm3 or kg/m3
Force
Weight and Mass It is the force acting on mass due to gravity. It is the pull of
Current, electricity and resistance
Resistance It is the opposition of the flow of current. It is measured in Ohms (Ω). When applying
Household Electricity
Uses of electricity in the home Lighting Heating Powering electrical devices e.g. motors Electrical Power Is the
Static Electricity
Electrostatic charging Friction between objects can cause electrons to be transferred from one object to another. When the