Metals and their uses 4.0 / 5 based on 1 rating ? ChemistryMetals, metal ores and alloysGCSEAQA Created by: BusayoxoCreated on: 21-12-15 14:24 What is the definition of an ore? An ore contains enough metal to make it economic to extract the metal 1 of 5 What must happen to ores before the metal is extracted and purified? The ore must be mined and concentrated 2 of 5 Metals that are less reactive than carbon can be extracted from their oxides by? Reduction with carbon 3 of 5 Metals that are more reactive than carbon, such as aluminium are extracted by? Electrolysis 4 of 5 Why are metals that are extracted by electrolysis expensive? Since the use 5 of 5
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