metal extracted Flashcards
what can some metals be extracted to?
carbon
what are metals called after they are mined?
ores
how can a metal be extracted from its ore?
reduction using carbon
what happens when an ore is reduced?
oxygen is removed from it
what metals can only be extracted from its ore?
less reactive metals which are lest reactive than carbon
how do you extract a more reactive metal than carbon?
using other chemical reactions
would metals like silver and gold have to be extracted?
NO because you can find it in its pure form because it really unreactive
why is silver and gold good for making jewellery and electrical contacts?
they don’t corrode
why are lead and copper used for roofing and piping?
like silver and gold they also don’t corrode
why is iron used for construction?
its more reactive and it rusts easily in water and air
