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Author Question: Which of these gases is least abundant in our atmosphere? A) hydrogen B) nitrogen C) argon D) ... (Read 79 times)

P68T

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on: Jul 27, 2018
Which of these gases is least abundant in our atmosphere?
 
  A) hydrogen
  B) nitrogen
  C) argon
  D) oxygen
  E) carbon dioxide

Question 2

Spectral lines are produced when an electron makes a transition from one energy state to another.
 
  Indicate whether the statement is true or false


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joechoochoy

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

A

Answer to Question 2

TRUE


P68T

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Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)

xthemafja

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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