A community of lifelong learners, responsible global citizens and champions of success
O level Chemistry Notes (Page 1) O level Chemistry Notes covering Matter, Atomic Structure, Elements, Mixtures and Compounds. These notes only show the key points in O’level chemistry curriculum. Download As Pdf States of matter SOLIDS: particles do not move but only vibrate about fixed position strong forces of attraction hold the particles in fixed…
O level Chemistry Notes (Page 3) O level Chemistry Notes covering Atomic and molecular masses, Percentage composition of elements in compounds, The mole and molar mass, Amount of substance, Empirical formula and Molecular formula .These notes only show the key points in O’level chemistry curriculum. Download As Pdf Atomic and molecular masses The relative atomic…
O level Chemistry Notes (Page 2) O level Chemistry Notes covering Bonding and Periodic Trends. These notes only show the key points in O’level chemistry curriculum. Download As Pdf Chemical Bonding There are three main types of chemical bonding:Related ContentO level Chemistry Questions and Answers(3)Properties and uses of Hydrogen gasExtraction of aluminium by electrolysisCombined Science…
O level Chemistry Notes (Page 4) O level Chemistry Notes covering Water of crystallisation, Calculations from chemical reactions, Percentage Yield, Calculations of reacting gas volumes, Avogadro’s Law of Gases.These notes only show the key points in O’level chemistry curriculum. Download As Pdf Water of crystallisation Some salts contain water molecules that form part of their…
O level Chemistry Notes (Page 5) O level Chemistry Notes covering Oxygen and Oxides, Carbon Dioxide, Hydrogen, The Reactivity Series, Displacement reactions and Redox reactions. Download As Pdf Oxygen and Oxides Oxygen makes up to about 21% of the Earths Atmosphere, Nitrogen about 78%, Argon about 0.9%, Carbon dioxide about 0.04% and also variable amounts…
O level Chemistry Notes (Page 6) O level Chemistry Notes covering types of oxides, oxidising agents, reducing agents and extraction of metals. An oxide is a chemical compound of a element or radical combined with oxygen. Some examples of oxides are ZnO (zinc oxide), CO2 (carbon dioxide), H2O (water). Types of Oxides Oxides can be…
Valency Valency is a measure of the number of hydrogen atoms an atom or radical can combine with. Hydrogen is the simplest known atom and has a valency of 1, so it is used as the standard. Valency is also defined as the number of electrons lost or gained when an atom is bonding to…
Organic Chemistry (Alkanes and Alkenes) Organic chemistry is the study of carbon compounds except for the oxides of carbon, carbonates, hydrogencarbonates, and carbides of metals. Organic compounds are grouped into groups with the same general formula, same functional group and same chemical properties. Such a group is called a homologous series. Homologous series A homologous…
Extraction of aluminium by electrolysis (O level Chemistry) Extraction of aluminium is done by electrolysis because reactive metals such hold on to the element they have combined with strongly so much that it is impossible to extract them by reduction of their oxides. In such cases we extract the metal by electrolysis of the molten…