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Author Question: The root-mean-square speed of NO2 at 28.4 C is ________ m/sec. A) 404 B) 40.2 C) 124 D) 233 ... (Read 82 times)

stephzh

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on: Aug 27, 2018
The root-mean-square speed of NO2 at 28.4 C is ________ m/sec.
 
  A) 404
  B) 40.2
  C) 124
  D) 233
  E) 12.8

Question 2

Which one of the following is not true concerning radon?
 
  A) It decays by alpha emission.
  B) It decays to polonium-218, an alpha emitter.
  C) It is chemically active in human lungs.
  D) It has been implicated in lung cancer.
  E) It is generated as uranium decays.


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morrie123456

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

A

Answer to Question 2

C


stephzh

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Reply 2 on: Aug 27, 2018
Gracias!

nguyenhoanhat

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Reply 3 on: Yesterday
Wow, this really help

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