Limestone is added to the iron producing mixture in a furnace to
A) add carbon to the mixture.
B) provide an additional reducing agent to extract all of the iron from the ore.
C) combine with silicates to remove impurities in the form of a slag.
D) produce a more corrosion resistant iron.
Correct Answer:
Verified
Q42: The name of an ore from which
Q43: Steel is formed by
A)heating iron at high
Q44: The amount of iron on the earth
Q45: The extraction of aluminum from its ore
Q46: Steel,in all of its variations,is a(n)
A)alloy.
B)compound.
C)element.
D)pure substance.
Q48: In comparing the actual relative costs of
Q49: If we should "run out" of aluminum
Q50: Which of the following statements about technologically
Q51: Recycling aluminum cans requires _ percent of
Q52: Copper is NOT commonly used for
A)automobile bodies.
B)electrical
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