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Chemistry
All the help you need for your Chemistry exam is here. Consult our exam help on the right for a checklist of revision topics, a comprehensive guide to the exam paper, a model answer to show you how you can maximise your marks and a useful analysis of likely topics. Then view our revision notes below.

Study Notes
These study notes cover the Chemistry syllabus, offering an overview of each major topic, its significance and a summary of the key 'must know' information. They are designed to aid your revision and help you identify any information gaps.
Atomic Structure and Periodic Table A knowledge of atomic structure is fundamental to an understanding of chemistry — as well as being crucial for success in Leaving Certificate.
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Bonding, Valency & Formulae, Shapes of Molecules A thorough knowledge of bonding is essential for the understanding of most of the other topics. Click here »»
Moles and Stoichiometry This topic is fundamental to all of the mathematical aspects of chemistry.
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Acids, Bases and Redox Reactions Two of the main types of chemical reactions are acid-base reactions, and redox reactions. Click here »»
Volumetric Analysis Volumetric analysis, (titrations), involves reacting chemical 'opposites' with each other, in order to determine unknown information about one of the substances. Click here »»
Rates of Reaction Rate of reaction is a straightforward topic once the terminology is known, and in this respect, there are quite a number of technical words to be understood. Click here »»
Molecular and Ionic Equilibria The section on equilibrium is one of the more difficult sections of the course and demands a good working knowledge of mathematics. Click here »»
Water Several of the mandatory experiments (two of which are titrations) pertain to water and it is important to have an understanding of the principles of these. Click here »»
Electrochemistry Electrochemistry is a simple topic for there are no relevant calculations on the current syllabus. Click here »»
Organic Chemistry: Hydrocarbons It is important to know and understand the various definitions and technical terms that are used to know the relationships between the different homologous series of compounds. Click here »»
Fuels and Thermochemistry The various types of fuel mentioned on the syllabus are the fossil fuels — coal, gas, oil, and hydrogen. Click here »»
Oxygen-containing Organic Compounds One of the most important things to know for success in organic chemistry is to know how all the different series of compounds are related, and how a member of one homologous series can be converted to the corresponding member of any of the other series. Click here »»
Industrial & Atmospheric Chemistry (optional) This is one of the Optional Topics — the other being Materials and Metal Extraction. Only one option needs to be studied. Click here »»
Materials and Metal Extraction (optional) This is Option 2 on the syllabus. Either this, or the previous topic (Industrial and Atmospheric Chemistry) is to be studied, but not both. Click here »»
Glossary A glossary of the key terms and definitions. Click here »»
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