Chemistry Chapter 3

Extracting Metals

• An ore is a rock that contains enough metal to extract it economically
• unreactive metals are found in their native state 
• The oxides of metals below carbon can be reduced by carbon to give the element
• metals more reactive than carbon are extracted by electrolysis

Iron and steels

• Pure iron is too soft for it to be useful
• Carbon and other elements are added to iron to make alloys of…