1. Separation Techniques and Chromatography – Identifying pure substances using chromatography, calculating Rf values, and analyzing ink compositions. 2. States of Matter and Phase Changes – Heating curves, phase transitions from liquid to gas, temperature change calculations, and latent heat considerations. 3. Electrolysis and Ionic Compounds – Products of electrolysis, labeling anode and cathode, impact of molten vs. aqueous electrolytes on conductivity. 4. Acid-Base Reactions and Neutralization – pH changes during titration, reaction of acids with metal hydroxides, solubility of salts, and state symbols in chemical equations. 5. Metals, Reactivity, and Extraction – Reactivity series and displacement reactions, predicting metal reactivity with acids, metal extraction methods based on reactivity. 6. Energy Changes in Chemical Reactions – Endothermic and exothermic processes, calculating temperature rises, energy transfer during combustion, and efficiency improvements in experiments.