Marysia

I am currently doing a lab write up and i have a little problem with some ionic equations the question goes as follows: You are provided with aqueous solutions of CaCl2, AlCl3, ZnCl2, CuCl2, FeCl2 and FeCl3 in six separate test tubes. To each of the solut...

Al and Zn both form hydroxides when reacted with an NH3 sloution and NaOH solution The hydroxides are both amphoteric When you add excess NH3 the Zn ppt dissolves, but Aluminium stays When you add excess NaOH both ppts dissolve why doesn't the aluminum pp...

In an experiment i had a test tube with Ca(NO3)2 solution in it and I added NaOH and a piece of aluminium. After carefully heating the solution ammonia gas was formed Can you help me write the equation for the reaction? I don't know the other products jus...

Oh and i have on emore question for the CuCl2 example i've done some research and what i came up with is [Cu(NH3)4(H2O)2]^2+, but this product is aqueous and i need to find the temporary ppt that was produced before i added excess NH3 solution sorry for m...

okay thanks bobpursely that explains a lot and regarding the CaCl2 and CaOH ppt, i think there was a slight ppt but my teacher let me ignore it so i guess im going to stick to the no ppt result thanks a lot for helping love marysia

i think i can ignore the complex, because the question is asking for the equation before i add excess and so i only nees to write an equation for the ppt but i'm just curious could the other metals also form complexes like the Cu does?

thanks very much :) love marysia

thx :)