Struggling with your prescribed literature?
Our Literature Study Guides provide insights and analysis of themes and characters and includes guidelines for writing your exam.
the heat of reaction or the change in heat when reactants form products during a chemical reaction.
this consists of three separate layers of the Earth â the crust, the mantle and the core.
reactions that cause the surroundings to cool. Heat is taken in.
the theory of acids and bases which defines an acid as a proton donor and a base as a proton...
the process in which a solid, liquid or gas dissolves in a solute to form a solution