Consider the colored precipitates you produced and the cations in those reactions. Identify the colorful cations and describe their location on the periodic table. What do they have in common? Select the statement that best answers the question They are from the same row on the periodic table They are from the same column on the periodic table They are all nonmetals They are transition metals They are all alkali metals Choose... (2pts) If you believe that you have a water sample that is contaminated with barium, what could you add to it to test it? Choose... (2pts) Based on the solubility observations, which of the following pairs of cations could be distinguished by the addition of sodium chloride to the solutions? Choose... (2pts) Based on the solubility observations, would you expect potassium and bromide to form a precipitate? Choose... (2pts) Based on the solubility observations, would you expect sodium and nitrate to form a precipitate? Choose...