Why extraction depends on reactivity
Why extraction depends on reactivity
Most metals are not found as pure elements because they have reacted with oxygen or other elements in the Earth's crust. An ore is a rock that contains enough metal or metal compound to make extraction worthwhile.
Step-by-step lessons covering CIE IGCSE Chemistry Extraction of metals for Core and Extended tier. Each lesson works through exam-style questions in Paper 1 and Paper 3 (Core) or Paper 2 and Paper 4 (Extended), plus Paper 5 or Paper 6 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.