Some Important Chemical Reactions you should know (O level chemistry) Ionisation of elements Ionisation of Group 1 elements (alkaline metals) Atoms of Group 1 elements have 1 electron in the outer shell, so they ionise by losing 1 electron to form a positively charged ion of charge +1. This is Read more…
How to use the periodic table In this post we are going to discuss on how to use the Periodic Table. To a random person, the Periodic Table might look like just an orderly arrangement of atoms but to a chemist, the Periodic Table is the summary of chemistry. The Read more…
Preparation of Salts (O level Chemistry) Preparation of salts depends on the physical and chemical properties of the salt. For example, when choosing the best method to prepare a salt you need to consider the following: is the salt soluble? If yes, we usually prepare it by neutralisation of acid Read more…
Metals Questions and Answers (Page 1) Question 1 Potassium is a metal above magnesium in the reactivity series. How would you expect it to react with (a) oxygen (b) water? Solution 1 (a) Reacts vigorously with oxygen (b) Reacts vigorously with water Question 2 A metal does not react with Read more…
Organic Chemistry Questions and Answers (Page 1) Question 1 The hydrocarbon methane is the first member of the alkanes homologous series. a) Draw diagrams to show the first 3 members of the alkanes homologous series. b) What substances will be formed when methane burns in plentiful air supply? How would Read more…