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 7 times)

melina_rosy · **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