Glass is annealed so that
A) silicon is baked out of the mixture.
B) calcium carbonate is decomposed to form calcium oxide.
C) strain is minimized as the liquid cools.
D) none of these
Correct Answer:
Verified
Q29: Calcium oxide from oyster shells is used
Q30: Doped silicon is used in
A) magnets.
B) transistors.
C)
Q31: Most metals are found in the Earth
Q32: Which of the following elements is found
Q33: Roasting of metal ores in air
A) converts
Q35: Which of the following is not an
Q36: Asbestos is
A) a glass.
B) a form of
Q37: Superconductivity is the result of
A) extremely low
Q38: Which of the following can be melted
Q39: A common element used in many semiconductors
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