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Author Question: The valence shell ________. A) always contains eight electrons. B) is the lowest energy shell in ... (Read 196 times)

jasdeep_brar

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on: Aug 27, 2018
The valence shell ________.
 
  A) always contains eight electrons.
  B) is the lowest energy shell in an atom.
  C) contains electrons in the outermost shell.
  D) is always the same for anions and cations.

Question 2

What is the main harmful component of photochemical smog?
 
  A) H2SO4
  B) O2
  C) NO2
  D) O3
  E) C and D


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onowka

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Reply #1 on: Aug 27, 2018
Answer to Question 1

C

Answer to Question 2

E


jasdeep_brar

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Reply 2 on: Aug 27, 2018
Wow, this really help

frankwu0507

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Reply 3 on: Yesterday
Excellent

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