Tag: Second Term

SS3 Chemistry – Simple Molecules and Their Shapes

SS3 Chemistry – Nuclear Reactions

SS3 Chemistry – Nuclear Chemistry

SS2 Chemistry – Sulphur and Its Compounds

SULPHUR AND ITS COMPOUNDS   Sulphur is a non-metal in the same family (Group VI) with oxygen in the Periodic Table. Sulphur is different from oxygen in that: – it

SS2 Chemistry – Nitrogen and Its Compounds

NITROGEN AND ITS COMPOUNDS Nitrogen forms about 78% by volume of the atmosphere. It can be found in combined form in trioxonitrate (V) of sodium and calcium. It can also

SS2 Chemistry – Chlorine and Other Halogens

HALOGENS The halogens are the group VII elements. The family comprises of fluorine, chlorine, bromine, iodine and astatine. Each member of the family contains 7 electrons at the valence shell.

SS2 Chemistry – Oxygen and Its Compounds

TOPIC: OXYGEN Oxygen is the most abundant element on Earth. It belongs to Group VI of the Periodic Table. The Other elements in the Group are sulphur, selenium, tellurium, and

SS2 Chemistry – Chemical Equilibrium

CHEMICAL EQUILIBRIUM Chemical equilibrium is a state where there is no observable change in the properties of a system concerning time. An equilibrium system may be static or dynamic. A

SS2 Chemistry – Exothermic and Endothermic Reactions

Types of Reaction Chemical reactions can generally be grouped as follows: Combination reaction: This is a reaction in which two or more substances combine to form a single compound. E.g.

SS2 Chemistry – Rates of Chemical Reactions