Ores and the reactivity clue
Ores and the reactivity clue

Most metals are extracted from ores because they are found chemically combined as oxides, sulfides or carbonates. An ore is a rock that contains enough metal or metal compound for extraction to be worthwhile.
Step-by-step lessons covering Edexcel IGCSE Chemistry Extraction and uses of metals for IGCSE Chemistry. Each lesson works through exam-style questions in Paper 1 and Paper 2 format. Build a solid grasp of atomic structure, bonding and the mole concept early, since these underpin almost every other topic, then move on to the more calculation-heavy quantitative and organic chemistry content.