Chemistry Resources

Explore the following for free, high-quality resources crafted for Chemistry students worldwide. 

Experimental Chemistry

Measurement and Experimental Design

• Common Gases and their properties

• Common Laboratory Apparatus and their functions

• 40 Chemical Substances All Students Must Know

Purification:

• Setting up and Interpreting Paper Chromatography

• How to separate sand and copper(II) sulfate salt from its mixture

• Filtration to separate insoluble solid from liquid

• How to separate immiscible liquids using Separating Funnel

• Miscibility of liquids

• How to separate miscible liquids using Fractional Distillation

• What is Simple Distillation

Qualitative Analysis

• How to distinguish lead(II) ions from aluminium ions?

• Why calcium ions do not form precipitate with aqueous ammonia

• Identification of Anions

• Identification of Cations using aqueous Ammonia (Flowchart available)

• Identification of Cations using aqueous Sodium Hydroxide (Flowchart available)

• Identifying Anions

• Identifying Cations

Atomic Structure and Stiochiometry​

Kinetic Particle Theory

• Changes in State of Matter

Atomic Structure

• What is the number of proton electron and neutron in an atom

Chemical Bonding

• Why do atoms form bonds? 

• Chemical Bonding - What are the 4 types of Bond Structures

• Valency

• How to draw dot and cross diagram of Covalent Molecules

• How to determine structure of covalent molecule

• How to draw dot and cross diagram of ionic compound - sodium oxide

• How to draw dot and cross diagram of ionic compound - calcium oxide

• How to draw dot and cross diagram of  ionic compound - magnesium chloride

• How to draw dot and cross diagram of  ionic compound - sodium chloride

Balancing Equations

• Balancing of Chemical Equations – 2012/P1/Q12

Mole Concept

• Mole Calculation

• How to convert units of mass and volume

• How to calculate number of particles| Avogadro’s constant

• How to Solve Chemical Calculation involving Acid and Alkali| 2018/P1/Q11

• How to determine Empirical Formula of Compound| 2015/P1/Q15; 2008/P1/13

Chemistry of Reactions

Electrolysis

• Electrolysis – Parts of an electrolytic Cell

Energy Changes

• How to draw Energy Profile Diagram and Energy Level Diagram of Exothermic and Endothermic Reaction

• What is activation energy?

• Endothermic and Exothermic Changes

• Energy Level Diagram

Redox Reaction

• Redox Reaction

Acids and Bases

• Bases and Alkalis

• Acid Strength

• pH

• Chemical Properties of Alkalis

• Chemical Properties of Acids

• Chemical Reactions to make copper(II) sulfate

• How to Solve Chemical Calculation involving Acid and Alkali| 2018/P1/Q11

Salt Preparation

• Solubility of Salts

• How to make insoluble salt| Precipitation Method

• Chemical Reactions to make copper(II) sulfate

Ammonia

• The Haber Process – Manufacturing of Ammonia

• The basics of Ammonia

Periodicity

The Periodic Table

• What are the features and patterns in the Periodic Table that you must know

• The Periodic Table - Noble Gases and Transition Elements

• The Periodic Table - What do you need to know about Halogens

• The Periodic Table - Why are Group I Elements called Alkali Metals

• What is Displacement reaction| Halogens

The Atmosphere and Environment

• Treatment of Sulfur dioxide – Flue Gas Desulfurisation

• Sulfur Dioxide - Sources and Harmful Effects

• Oxides of Nitrogen - Sources and Harmful Effects

• Carbon Monoxide - Sources and Harmful Effects

Organic Chemistry

• Fermentation of Glucose

• Naming Organic Compounds

• Homologous Series

• Draw structures of alkanes |Full Structural Formula

• Draw structures of alkenes |Full Structural Formula

• How to draw structures of alcohols |Full Structural Formula  

• How to draw structures of carboxylic acids |Full Structural Formula

• Addition Reactions of Alkenes

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