Which of the following are not commonly used as sources of metals?
A) silicates
B) oxides
C) sulfides
D) carbonates
E) All of the above are commonly used sources of metals.
Correct Answer:
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Q39: An advantage to leaching gold with aqueous
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Q41: During roasting, the metal reacts with
A) oxygen.
B)
Q42: Why is either pure oxygen or oxygen
Q43: Shape memory alloys .
A) in their lower
Q45: Which one of the following is false
Q46: A disadvantage to leaching gold with aqueous
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A) blue.
B) violet.
C)
Q48: The major impurities found in bauxite are
Q49: An alloy is a
A) a mineral containing
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