I though it was alright I got Ammonium Sulphate but I wrote Magnesium Sulphate, for the other salt because of the white crystalline solids being group 1, 2 or ammonium salts. I completely messed up the organic question I said that there was a c=c group present and that the hydroxyl group was absent :P Ah well apart from that
Apparently it is Magnesium Nitrate. They'll accept Magnesium Chloride. It will form a white ppt. when in contact with CO3 ions.
Ahh I knew it was a solution of magnesium ions that had to be added but I thought the magnesium ions could come from anything so I just out magnesium sulphate solution!
The wanted proof of carbonate ions, not hydrogen carbonate. Pretty sure they wont accept that answer
I think they would as it does test for carbonate ions, maybe loss 1 mark if any. I may be wrong but I thought that as mg was in the thing anyway you could assume that there were no hydrogen carbonate ions.