Chemreview.net, Advanced placement chemistry. chemreview.net has some incredibly detailed tutorials on topics in chemistry. this year, i had a couple of students (who struggled with. Ionic structures tutorial - chemguide, This page explains the relationship between the arrangement of the ions in a typical ionic solid like sodium chloride and its physical properties - melting point. Writing ionic equations redox reactions, Explains how you construct electron-half-equations for redox reactions and combine them to give the ionic equation for the reaction..