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Author Question: At STP, 1 mole of oxygen gas, O2, will have a mass of A) 16.0 g. B) 22.4 g. C) 28.0 g. D) 32.0 ... (Read 107 times)

bcretired

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on: Aug 27, 2018
At STP, 1 mole of oxygen gas, O2, will have a mass of
 
  A) 16.0 g.
  B) 22.4 g.
  C) 28.0 g.
  D) 32.0 g.

Question 2

Which subatomic particles have approximately the same mass?
 
  A) electrons and neutrons
  B) electrons and protons
  C) neutrons and protons
  D) electrons, neutrons and protons


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apple

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

D

Answer to Question 2

C


bcretired

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Reply 2 on: Aug 27, 2018
Gracias!

samiel-sayed

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Reply 3 on: Yesterday
Wow, this really help

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