Author Question: The class of semiconductors, known as elemental, has special features. These are ________. A) ... (Read 103 times)

bb

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The class of semiconductors, known as elemental, has special features. These are ________.
 
  A) band gap and individual element valence electrons
  B) periodical table grouping and diamond crystal structure
  C) tetrahedral coordination geometry and sp2 hybrid orbitals
  D) overlapping hybrid orbitals and filed conduction bands
  E) none of the above

Question 2

Sodium bicarbonate is reacted with concentrated hydrochloric acid at 37.0 C and 1.00 atm. The reaction of 6.00 kg of bicarbonate with excess hydrochloric acid under these conditions will produce ________ L of CO2.
 
  A) 1.09  102
  B) 2.85  104
  C) 1.82  104
  D) 8.70  102
  E) 1.82  103



jxjsniuniu

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Answer to Question 1

B

Answer to Question 2

E



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