Revision notes of atoms , elements and compounds for Edexcel IGCSE ( 9-1) students.

Activity sheet from the past paper questions of Cambridge IGCSE exams

The common hazard signs that student know for the subject of chemistry.

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

The lesson notes based on Cambridge IGCSE chemistry specification till 2025

Lesson notes based on the Cambridge IGCSE chemistry specification

The lesson notes are based on Cambridge IGCSE Chemistry (0620) specification.

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 are included: Characteristics of the homologous series Naming Isomers Chemical reactions Manufacturing Uses

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

The complete acid , base and salt revision notes are prepared according to the order of the specification content so that students could easily cover up the theory and practical knowledge which supports for paper 1 and paper 2. The revision notes are included : Characteristics of acid , bases and salts Acid and alkali titrations Preparation of salts practical knowledge

The following subsections are included: • Crude oil as a fossil fuels • Fractional distillation • Separation of factions and uses • Cracking hydrocarbons • Combustion of fossil fuel • Environmental hazards by combustion of fossil fuel • Alternatives for fossil fuels • Alkanes • Alkenes

The following sub-topics are covered in this section. 1.Homologous series 2. Formulae in organic chemistry 3.Isomerism 4.Functional groups 5. Types of organic chemical reaction 6. IUPAC naming of organic compounds

The following sub-topics are covered in this section. 1.Homologous series 2. Formulae in organic chemistry 3.Isomerism 4.Functional groups 5. Types of organic chemical reaction 6. IUPAC naming of organic compounds

The complete revision note for the Acid, Base and Alkali is for Edexcel GCSE explains the following topics according to the new specification. Contents: Acids Reactions of acids Acid base indicators pH and pH related calculations Bases Preparation of soluble and insoluble salts Acid and Alkali titration Core practicals

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 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.