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what is oxidisation?
the process of gaining oxygen
what is reduction?
the loss of oxygen
name one way to reduce metal oxides
if you add carbon, it will react with the oxygen and form carbon dioxide
what is oxidised and what is reduced in reduction via carbon
the metal is reduced and carbon is oxidised
what elements can you not reduce with carbon?
elements more reactive than carbon
how can you reduce metals more reactive than carbon?
electrolysis
what is an ore?
a metal-rich compound
what is a common iron ore?
Fe2O3
how can we reduce Fe2O3?
reduction by carbon
write the balanced symbol equation for Fe2O3 + C → Fe + CO2
2Fe2O3 + 3C → 4Fe + 3CO2