metal ores 0.0 / 5 ? ChemistryMetals, metal ores and alloysGCSEEdexcel Created by: mollyursellCreated on: 10-05-18 20:57 what are metal ores? it is a rockthat contains enough of a metal to make its extraction economical 1 of 5 what is oxidation? it is the gainof oxygen by a substance, for example magnesium would become magnesium oxide 2 of 5 what is reduction? it is the loss of oxygen by a substance for example zinc oxide would become zinc 3 of 5 which metal is more resistant to corrosion- calcium or copper? copper is more resistant to corrosion because it is lower in the reactivety series 4 of 5 when do metals corrode? metals corrode when they react with substances around them such as air and water, 5 of 5
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