To produce steel in the blast furnace, what must done to the carbon content in the iron?
A) increased to approximately twice its original value
B) reduced to a smaller value
C) eliminated
D) distributed evenly throughout the iron
Correct Answer:
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Q19: Which of the following metals is recovered
Q20: Which term or phrase does not apply
Q21: Which commonly used structural metal has the
Q22: Amorphous materials
A) are solids like tar and
Q23: Which of the following statements characterizes clays?
A)
Q25: Solar cells can be
A) built only using
Q26: A p-type semiconductor is one that
A) contains
Q27: The p-type of semiconductor is generally
A) silicon
Q28: Which of the following metals is reduced
Q29: Calcium oxide from oyster shells is used
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