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Author Question: Perhaps the greatest triumph of Mendeleev's periodic table was A) the use of rows and columns to ... (Read 84 times)

moongchi

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Perhaps the greatest triumph of Mendeleev's periodic table was
 
  A) the use of rows and columns to organize the elements.
  B) the ability to predict electron configurations of elements.
  C) the use of atomic numbers as an organizing criterion.
  D) the prediction of the existence of undiscovered elements.

Question 2

Which contains more carbon?
 
  A) 24 g methane
  B) 140 g sodium carbonate
  C) 40 g carbon monoxide
  D) 15 g octane, C8H18



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fffftttt

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Answer to Question 1

D

Answer to Question 2

A




moongchi

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


adf223

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

 

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