Question

A scientist is investigating the solubility of two polyatomic ions, oxalate ( C2O2−4 ) and arsenate ( AsO3−4 ), which are not listed in the table of solubility guidelines. The scientist starts with four solutions made of water-soluble salts. Solution A contains sodium arsenate. Solution B contains ammonium oxalate. Soution C contains silver chlorate. Solution D contains aluminum bromide.

Answer 1

The scientist has four solutions: A (sodium arsenate), B (ammonium oxalate), C (silver chlorate), and D (aluminum bromide).