User blog comment:Wildoneshelper/Guess the Object (Round 2)!!/@comment-4189499-20140614072425/@comment-24733878-20140614120028

True. I had to refer to my database which I had it years ago from my 'A' Level studies (and still have it) and found out that only the Group I metals, ammonium and uranyl carbonates are soluble in water.