Ask your own question, for FREE!
Mathematics 9 Online
OpenStudy (rissyroo118):

What is the first step in extracting resources from the Earth? prospecting strip-mining subsurface mining reclamation

OpenStudy (rissyroo118):

Please help

OpenStudy (anonymous):

subsurface mining

OpenStudy (rissyroo118):

Which type of mine involves digging tunnels and shafts deep underground? (Points : 2) openpit mine strip mine smelting subsurface mine

OpenStudy (rissyroo118):

@student1524150

OpenStudy (anonymous):

D or B

OpenStudy (rissyroo118):

What is the process used for extracting metals from ores? (Points : 2) ore slag alloy smelting i think its ore but could you confirm that of me?

OpenStudy (rissyroo118):

@student1524150

OpenStudy (anonymous):

Methods of extracting metals The Earth's crust contains metals and metal compounds such as gold, iron oxide and aluminium oxide, but when found in the Earth these are often mixed with other substances. To be useful, the metals have to be extracted from whatever they are mixed with. A metal ore is a rock containing a metal, or a metal compound, in a high enough concentration to make it economic to extract the metal. The method used to extract metals from the ore in which they are found depends on their reactivity. For example, reactive metals such as aluminium are extracted by electrolysis, while a less-reactive metal such as iron may be extracted by reduction with carbon or carbon monoxide. Thus the method of extraction of a metal from its ore depends on the metal's position in the reactivity series:

OpenStudy (anonymous):

your correct

OpenStudy (rissyroo118):

thank you {:

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!