Is the reaction 2Al(s) + 3Cl 2 (g) ----> 2AlCl 3 (s) can be considered as the redox reaction ?

Yes, since Al is underging an oxidation and Cl is undergoing reduction .

chemistry123 Fri, 08/18/2017 - 10:08
When 0.150 L of 0.10 M lead (II) nitrate and 0.100 L of 0.20 M sodium chloride are mixed? For PbCl 2 , K sp = 1.2 x10 - 5
Q>Ksp, so PbCl2 does precipitate.Eq shifts to the left .
 
3.8
chemistry123 Thu, 08/17/2017 - 11:32