19. A correct name for Fe(NO3)2 is: A. iron nitrate B. ferrous nitrite C. ferric nitrite D. ferrous nitrate E. ferric nitrate 20. What is the molarity of a solution prepared by dissolving 104 g of BaCl2 in enough water to make 250 mL of solution? A. 0.500 M B. 1.00 M C. 2.00 M D. 3.00 M E. 4.00 M 21. When correctly balanced, what will be the sum of the smallest whole-number coefficients in the following equation? A. 17 B. 20 C. 22 D. 25 E. 26 22. When correctly balanced with the smallest whole-number coefficients, what will be the coefficient the Bi^3+ ion in the following equation? (This reaction takes place in the acidic solution.)