A Paadama Grade 12 Term 2 test, set 1, in the format of the G.C.E. (A/L) Chemistry Paper II, covering Units 4 to 6 (about 70% of the marks) and Units 1 to 3 (about 30%). Part A: answer all four structured questions (100 marks each). Part B: answer three of the four essay questions (150 marks each). Use R = 8.314 J K⁻¹ mol⁻¹ (R = 0.08314 bar dm³ K⁻¹ mol⁻¹ where bar is used), Avogadro constant = 6.022 × 10²³ mol⁻¹. Relative atomic masses are given in the questions where needed. Each question has a model answer showing where the marks go.