Pyrometallurgy uses __________ to separate a metal from its ore.
A) solid phase chemical properties
B) electrical processes
C) thermal processes
D) aqueous chemical processes
E) explosives
Correct Answer:
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Q23: What gas is produced during the Hall-Héroult
Q24: The debris accompanying a mineral is called
A)slag.
B)gangue.
C)ore.
D)halite.
E)ash.
Q25: The process of converting metal sulfides to
Q26: Calcium oxide is added to molten iron
Q27: Hydrometallurgy uses _ to separate a metal
Q29: The process that selectively extracts a metal
Q30: Cryolite, Na3AlF6, is used in the electrolysis
Q31: Which one of the following species or
Q32: The Downs cell is used in the
Q33: The final step of the purification of
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