The Mole & Avogadro’s Constant
The Mole Concept Mole: This is the mass of any substance containing the same number of fundamental units i.e.; Atoms, Molecules or ions, as there are atoms in…
Experimental Techniques : Measurement & Purity
Time, Temperature, Mass & Volume Time Time can be measured using a stopwatch or stopclock which are usually accurate to one or two decimal places The units of…
The Particulate Nature of Matter
Solids, Liquids & Gases Solid has a definite shape and volume, liquid has a definite volume but take the shape of the container, gas has no definite shape or…
Carbon Dioxide & Methane Revision Notes
Greenhouse gases The greenhouse gases trap heat in the atmosphere and warm the planet Earth. The main gases responsible for the greenhouse effect include carbon dioxide, methane, nitrous oxide,…
Fertilizers Revision Notes IGCSE Chemistry
Fertilizers Fertilizers are “The products that improve the levels of the available plant nutrients and/or the chemical and physical properties of the soil, thereby directly or indirectly enhancing…