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FREE STUDY NOTES FOR 0620-IGCSE CHEMISTRY

 

EXPERIMENTAL TECHNIQUES

1.LAB APPARATUS

STOICHIOMETRY

1. CALCULATING VOLUME

 

2.MOLES/MOLAR GAS VOLUME

LIMITING REACTANT

 

3.CALCULATION OF MOLES

 

4.BALANCING CHEMICAL EQUATIONS

 

5.BALANCING EQUATIONS

 

6.COMPLETE STOICHIOMETRY IN 35 MINS

 

7.FINDING EMPIRICAL FORMULA

 

CHEMICAL ENERGETICS

1. BOND ENERGY CALCULATIONS

 

2. FEATURES OF AN EQUILIBRIUM REACTION

 

ACIDS BASES AND SALTS

1. FLAME TEST FOR CATIONS

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2.REACTIVITY SERIES FOR CATIONS AND ANIONS

 3.SOLUBILITY MNEMONICS AND  GENERAL REACTIONS FOR ACIDS

 

CHEMICIAL REACTIONS

1. REVERSIBLE AND IRREVERSIBLE REACTIONS

 

PERIODIC TABLE

 

1. CALCULATING THE NUMBER OF VALENCE ELECTRONS

 

METALS

1. ZINC EXTRACTION

 

2. ALUMINIUM EXTRACTION

 

3.DECOMPOSITION REACTIONS-

 

4.ALLOYS AND THEIR USES

 

5.UNREACTIVE NATURE OF ALUMINIUM

 

6. REASONS WHY ALLOYS ARE HARDER COMPARED TO PURE METALS

 

AIR AND WATER

1. HABER PROCESS

 

2. CONTROLLING SOIL ACIDITY

 

SULFUR

 

1. CONTACT PROCESS

 

ORGANIC CHEMISTRY

1. ALKANES-PHYSICAL PROPERTIES

 

2. CRACKING OF ALKANES

 

3. PHOTOCHEMICAL REACTIONS OF ALKANES