redox + metals Flashcards
what does oxidation mean
reaction with or addition of oxygen
what does reduction mean
removal of oxygen
what is an oxidizing agent
substance that oxidizes metal (and is reduced)
what is the reducing agent
substance that reduces the metal oxide (and is oxidized) is the reducing agent
where are metal compounds found naturally
earths crust
what is a metal compound called if it contains enough of the metal to be worthwhile extracting
metal ore
what type of resource is a metal ore
finite
what makes a metal harder to extract from a compound
the more reactive it is
what is a common reducing agent
carbon
why can only metals that are less reactive than carbon be extracted using it
because carbon is more reactive so can displace the metal
how are metals more reactive then carbon extracted
electrolysis
what is electrolysis
uses electricity to separate the metal from the other elements in the compound
