Reinforcement revision questions according to the new specification of Cambridge IGCSE and Cambridge O levels

Revision notes on Energy and workdone

The concise summary of mole concept for Cambridge students in according to the specification.

The reinforcement worksheets with exam style questions to practice naming, chemical reactions and addition reactions.

The reinforcement worksheet is based on new specification and the topics homologous series, naming and formulae of basic concepts of organic chemistry are included . The chapter crude oil and cracking and fractional distillation of crude oil is added to the introduction because most of questions are linked between two chapters.

The reinforcement exam style revision questions are based on new specification and are included addition and condensation polymers.

Revision note for international IGCSE students

The practice mole workbook is based on the Cambridge O/L new syllabus covering up the following areas. 1 . writing Formulae , word equation, symbol equation and ionic equations 2.Calculating relative formula mass(molar mass) and percentage by mass 3.Calculating moles, molecules , atoms and mass of chemical compound 4.Calculating the moles and volume of gases 5.Calculating the concentration , moles and volume of solutions 6. Calculating the moles, molecules and atoms ( calculations with Avogadro Constant) 7.Calculating empirical formula and molecular formula. 8. Percentage purity and percentage yield 9. Calculating of reacting masses , excess and limiting reagents and prediction of the quantity of reactants and masses 10. Calculations problems related with titrations 11. Answers

The complete revision lesson notes are included: Alkanes Properties of alkanes Uses of alkanes Members of the alkane homologous series Naming alkanes Isomers of alkanes chemical reactions of alkanes Alkenes Properties of alkenes uses of alkenes Members of the alkene homologous series Naming alkenes Isomers of alkenes Chemical reactions of alkenes

The lesson note covers : Properties of alcohols Naming of alcohols Isomers Chemical reactions of alcohols Manufacturing ethanol Uses of alcohols

The notes include the followings: • Definitions and concept of synthetic polymers • Addition polymers • Drawing the repeat unit of an addition polymer, including poly(ethene), poly(propene), poly(chloroethene) and (poly)tetrafluoroethene • Deducing the structure of a monomer from the repeat unit of an addition polymer • Explaining problems in the disposal of addition polymers, including:their inertness and inability to biodegrade and the production of toxic gases when they are burned. • Condensation polymerisation, in which a dicarboxylic acid reacts with a diol, produces a polyester and water • Writing the structural and displayed formula of a polyester, showing the repeat unit, given the formulae of the monomers from which it is formed including the reaction of ethanedioic acid and ethanediol • Learning about biopolyesters

The lesson notes provide the knowledge on following sub topics. Physical quantities and vector and scalar quantities. The relationships with speed, distance, time , displacement, velocity and acceleration. The motion graphs Motion in a circular path *Forces, stopping distance and momentum (with exam style worked examples) The relationship with force , mass and acceleration and related graphs Stopping distance and controlling speed Momentum and car safety

The alternative to practical support guide provide enough practical knowledge for the : Practical test Alternative to practical paper

Alkene worksheet with answers are based on Organic chemistry specification to reinforce the concepts of hydrocarbons. The worksheet provide the practice on naming and addition reactions.

The lesson is based on the specification of Cambridge IGCSE Chemistry.

The lesson notes based on chemical bonding in according to the specification .

The lesson notes base on the Cambridge IGCSE chemistry specification.

Lesson notes based on the Cambridge IGCSE chemistry specification

The worksheet based on new chemistry ( Cambridge 2023-2025) -0620 specification.

The summary notes cover the topic based on concepts of formulae, equations and amount of substance with examples in according to the new specification. The notes are included the most confusing questions which commonly appear in papers with answers.