Chemistry KE

Introduction to Reactions of Water and Metals Some metals react with water while others do not.The reaction of metals with water depends on the reactivity series.The higher the metal in the reactivity series the more reactive the metal with water…

Introduction to Hydrogen (Water and Hydrogen) – Hydrogen does not occur free in nature.– It occurs as water and in petroleum. An experiment is conducted as follows;– Put Zinc granules in a round/flat/conical flask– Add dilute sulphuric acid or Hydrochloric…

Introduction to Water (Water and Hydrogen) Last Updated: 3rd February, 2021 Pure water is a colourless, odourless, tasteless, neutral liquid.Pure water does not exist in nature but naturally in varying degree of purity.The main sources of water include rain, springs,…

Introduction to Chemical Properties of Oxygen – Oxygen is a very reactive non metal.– Many elements react with oxygen through burning to form a group of compounds called oxides.– Burning/combustion is the reaction of Oxygen with an element/substances.– Reaction in which a substance…

The atmosphere is made up of air, a mixture of colourless, odorless gases which is felt as wind.There are various gases in the atmosphere a listed below with their percentage composition; There are different experiments that could be used to…

An acid may be defined as a substance that turns litmus red.A base may be defined as a substance that turns litmus blue.An indicator is a substance that shows whether another substance is a base/alkaline,acid or neutral There are some common and naturally occurring acids as…

(i) Solutions (solid-liquid dissolved mixture) When a solute dissolves in a solvent it forms a uniform mixture called solution. A substance/liquid in which another substance dissolves is called solvent. A substance /solid /gas which dissolves in a solvent is called…

Chemistry is defined as the branch of science that deals with the structure composition, properties and behavior of matter. The Role of Chemistry in Society (i) Washing/cleaning with soap(ii) Understanding chemicals of life(iii) Baking(iv) Medicine(v) Fractional distillation of crude oil(vi)…