1. Which of the following compounds listed below is water-soluble? A. Ba(NO3)2 B. CuS C. Fe3(PO4)2 D. Mg(OH)2
2. Calcium nitrate dehydrate is dissolved in water. What ions are present in solution? A.Ca2+ and 2 NO3- B. Ca2+and 2 NO3- C. Ca2+ and NO32- D. Ca+ and NO 3-
3. A 1-g sample of each of the four compounds listed below was placed in a beaker with 100 mL of water. The mixture was then tested to see if it conducted an electric current. Which solution was a weak conductor of electricity? A. Ethanol B. acetic acid C. NAC1 D. NaOH