Notes developed according to the Edexcel International GCSE Chemistry Specification, but are useful for most GCSE Chemistry specifications (note: Equilibrium and acid theory is explored in far more detail than AQA or Edexcel GCSE require, but everything else is relevant).
Ion tests for a large range of ions, and does include tests for some non-ionic substances (H2O, CO2, H2)
Reactivity series and metals is detailed, including reactions of metals with acids, metal oxides with acids, metals with water, metals with steam, metal carbonates and acids and metal hydroxides with acids.
This bundle contains several documents with practice questions on C1.2, C1.3, C1.5, C1.6 and C1.7 topics. It also includes a long, exam-style paper on organic chemistry practice questions (cracking, fractional distillation, hydrogenation, emulsions, fats and oils, hydrocarbons, fuels, combustion etc)