Write net ionic equations for the reaction, if any, that occurs when aqueous solutions of the following are mixed. (Be sure to specify states such as (aq) or (s). If a box is not needed, leave it blank. If no reaction occurs, leave all boxes blank and click on Submit.) a. cobalt(III) chloride and sodium hydroxide b. silver nitrate and ammonium selenate c. copper(II) sulfate and calcium nitrate d. magnesium nitrate and rubidium iodide