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Author Question: Which elements all belong in the same group? A) C, N, O B) Fe, Cu, Ni C) B, Si, As D) F, Cl, ... (Read 31 times)

melina_rosy

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on: Aug 27, 2018
Which elements all belong in the same group?
 
  A) C, N, O
  B) Fe, Cu, Ni
  C) B, Si, As
  D) F, Cl, Br
  E) Al, Ge, Sb

Question 2

What is the concentration of FeCl3 in a solution prepared by dissolving 20.0 g of FeCl3 in enough water to make 275 mL of solution?
 
  A) 4.48  10-4 M
  B) 0.448 M
  C) 2.23 M
  D) 2.23  103 M


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macmac

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

D

Answer to Question 2

B


melina_rosy

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Reply 2 on: Aug 27, 2018
Gracias!

steff9894

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Reply 3 on: Yesterday
Wow, this really help

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