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Author Question: A category ________ plastic container will generally be the most easily recycled. A) 1 B) 2 C) ... (Read 180 times)

shofmannx20

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A category ________ plastic container will generally be the most easily recycled.
 
  A) 1
  B) 2
  C) 3
  D) 4
  E) 22

Question 2

The conjugate base of HSO4- is ________.
 
  A) OH-
  B) H2SO4
  C) SO42-
  D) HSO4+
  E) H3SO4+

Question 3

Chemical treatment of municipal water supplies commonly entails use of CaO, Al2(SO4)3, and Cl2. The purpose of adding CaO is to ________.
 
  A) remove all HCO3- as solid CaCO3
  B) remove all SO42- as solid CaSO4
  C) remove all Cl- as solid CaCl2
  D) selectively kill anaerobic (but not aerobic) bacteria
  E) make the water slightly basic so that addition of Al2(SO4)3 will afford a gelatinous precipitate of Al(OH)3


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meltdown117

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shofmannx20

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Reply 2 on: Aug 27, 2018
Excellent


cpetit11

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Reply 3 on: Yesterday
Great answer, keep it coming :)

 

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