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Author Question: Which of the following polyatomic ions is the most negatively charged? A) ammonium B) carbonate ... (Read 93 times)

jrubin

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on: Aug 27, 2018
Which of the following polyatomic ions is the most negatively charged?
 
  A) ammonium
  B) carbonate
  C) phosphate
  D) acetate

Question 2

The concentration of carbon monoxide in a sample of air is 9.2 ppm. There are ________ molecules of CO in 1.00 L of this air at 755 torr and 23C.
 
  A) 3.8  10-7
  B) 2.2  1021
  C) 2.9  1018
  D) 1.7  1020
  E) 2.3  1017


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ApricotDream

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

C

Answer to Question 2

E


jrubin

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Reply 2 on: Aug 27, 2018
Excellent

yeungji

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Reply 3 on: Yesterday
Gracias!

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