Struggling with your prescribed literature?
Our Literature Study Guides provide insights and analysis of themes and characters and includes guidelines for writing your exam.
a substance that can act as both an acid and a base.
a property that, if changed, can change the chemical nature of a substance and how it reacts....
electrons that have become removed from the atom and form a âseaâ or region to which the...
a solution to which a little acid has been added to a lot of water.
molecule where the ratio of atoms is 1 : 5, for example PCl5